Finding the Third Proportional to 117,847,460 and 277,799,238

Step by Step Solution

1. Step 1: Write the proportion equation
   117,847,460 : 277,799,238 = 277,799,238 : x
2. Step 2: Convert to fraction form
   117,847,460/277,799,238 = 277,799,238/x
3. Step 3: Cross multiply
   117,847,460x = 277,799,238 × 277,799,238
4. Step 4: Simplify right side
   117,847,460x = 77,172,416,633,380,640
5. Step 5: Solve for x
   x = 77,172,416,633,380,640/117,847,460
6. Step 6: Final answer
   x = 654,850,063.24