Finding the Third Proportional to 85,466,154 and 173,952,738

Step by Step Solution

1. Step 1: Write the proportion equation
   85,466,154 : 173,952,738 = 173,952,738 : x
2. Step 2: Convert to fraction form
   85,466,154/173,952,738 = 173,952,738/x
3. Step 3: Cross multiply
   85,466,154x = 173,952,738 × 173,952,738
4. Step 4: Simplify right side
   85,466,154x = 30,259,555,057,696,644
5. Step 5: Solve for x
   x = 30,259,555,057,696,644/85,466,154
6. Step 6: Final answer
   x = 354,053,079.98