Finding the Third Proportional to 39,880,550 and 86,759,500

Step by Step Solution

1. Step 1: Write the proportion equation
   39,880,550 : 86,759,500 = 86,759,500 : x
2. Step 2: Convert to fraction form
   39,880,550/86,759,500 = 86,759,500/x
3. Step 3: Cross multiply
   39,880,550x = 86,759,500 × 86,759,500
4. Step 4: Simplify right side
   39,880,550x = 7,527,210,840,250,000
5. Step 5: Solve for x
   x = 7,527,210,840,250,000/39,880,550
6. Step 6: Final answer
   x = 188,743,907.50