Finding the Third Proportional to 79,042,857 and 171,280,398

Step by Step Solution

1. Step 1: Write the proportion equation
   79,042,857 : 171,280,398 = 171,280,398 : x
2. Step 2: Convert to fraction form
   79,042,857/171,280,398 = 171,280,398/x
3. Step 3: Cross multiply
   79,042,857x = 171,280,398 × 171,280,398
4. Step 4: Simplify right side
   79,042,857x = 29,336,974,739,038,404
5. Step 5: Solve for x
   x = 29,336,974,739,038,404/79,042,857
6. Step 6: Final answer
   x = 371,152,762.60