Finding the Third Proportional to 88,721,638 and 194,140,292

Step by Step Solution

1. Step 1: Write the proportion equation
   88,721,638 : 194,140,292 = 194,140,292 : x
2. Step 2: Convert to fraction form
   88,721,638/194,140,292 = 194,140,292/x
3. Step 3: Cross multiply
   88,721,638x = 194,140,292 × 194,140,292
4. Step 4: Simplify right side
   88,721,638x = 37,690,452,977,845,264
5. Step 5: Solve for x
   x = 37,690,452,977,845,264/88,721,638
6. Step 6: Final answer
   x = 424,816,919.83