Finding the Third Proportional to 39,880,732 and 86,567,816

Step by Step Solution

1. Step 1: Write the proportion equation
   39,880,732 : 86,567,816 = 86,567,816 : x
2. Step 2: Convert to fraction form
   39,880,732/86,567,816 = 86,567,816/x
3. Step 3: Cross multiply
   39,880,732x = 86,567,816 × 86,567,816
4. Step 4: Simplify right side
   39,880,732x = 7,493,986,767,009,856
5. Step 5: Solve for x
   x = 7,493,986,767,009,856/39,880,732
6. Step 6: Final answer
   x = 187,909,960.30