Finding the Third Proportional to 59,900,436 and 85,599,109.50

Step by Step Solution

1. Step 1: Write the proportion equation
   59,900,436 : 85,599,109.50 = 85,599,109.50 : x
2. Step 2: Convert to fraction form
   59,900,436/85,599,109.50 = 85,599,109.50/x
3. Step 3: Cross multiply
   59,900,436x = 85,599,109.50 × 85,599,109.50
4. Step 4: Simplify right side
   59,900,436x = 7,327,207,547,192,990
5. Step 5: Solve for x
   x = 7,327,207,547,192,990/59,900,436
6. Step 6: Final answer
   x = 122,323,108.75