Update proof solution

Author: jagdish-15

exercises/practice/resistor-color-trio/.meta/config.json

@@ -3,7 +3,8 @@
     "SleeplessByte"
   ],
   "contributors": [
-    "hayashi-ay"
+    "hayashi-ay",
+    "jagdish-15"
   ],
   "files": {
     "solution": [

exercises/practice/resistor-color-trio/.meta/proof.ci.js

@@ -12,6 +12,8 @@ const COLORS = [
 ];
 
 const ONE_KILOOHM = 1000;
+const ONE_MEGAOHM = 1000000;
+const ONE_GIGAOHM = 1000000000;
 
 class ArgumentError extends Error {}
 
@@ -44,9 +46,18 @@ export class ResistorColorTrio {
 
   toString() {
     const value = this.value;
-    return value < ONE_KILOOHM
-      ? `${value} ohms`
-      : `${Math.floor(value / ONE_KILOOHM)} kiloohms`;
+
+    if (value >= ONE_GIGAOHM) {
+      return `${Math.floor(value / ONE_GIGAOHM) } gigaohms`;
+    }
+    if (value >= ONE_MEGAOHM) {
+      return `${Math.floor(value / ONE_MEGAOHM) } megaohms`;
+    }
+    if (value >= ONE_KILOOHM) {
+      return `${Math.floor(value / ONE_KILOOHM) } kiloohms`;
+    }
+
+    return `${value} ohms`;
   }
 
   /**