Finding the Third Proportional to 152,248 and 242,460

Step by Step Solution

1. Step 1: Write the proportion equation
   152,248 : 242,460 = 242,460 : x
2. Step 2: Convert to fraction form
   152,248/242,460 = 242,460/x
3. Step 3: Cross multiply
   152,248x = 242,460 × 242,460
4. Step 4: Simplify right side
   152,248x = 58,786,851,600
5. Step 5: Solve for x
   x = 58,786,851,600/152,248
6. Step 6: Final answer
   x = 386,125.61