Finding the Third Proportional to 39,799,152 and 86,607,639

Step by Step Solution

1. Step 1: Write the proportion equation
   39,799,152 : 86,607,639 = 86,607,639 : x
2. Step 2: Convert to fraction form
   39,799,152/86,607,639 = 86,607,639/x
3. Step 3: Cross multiply
   39,799,152x = 86,607,639 × 86,607,639
4. Step 4: Simplify right side
   39,799,152x = 7,500,883,133,154,321
5. Step 5: Solve for x
   x = 7,500,883,133,154,321/39,799,152
6. Step 6: Final answer
   x = 188,468,415.94