Finding the Third Proportional to 41,728,909.50 and 89,628,066

Step by Step Solution

1. Step 1: Write the proportion equation
   41,728,909.50 : 89,628,066 = 89,628,066 : x
2. Step 2: Convert to fraction form
   41,728,909.50/89,628,066 = 89,628,066/x
3. Step 3: Cross multiply
   41,728,909.50x = 89,628,066 × 89,628,066
4. Step 4: Simplify right side
   41,728,909.50x = 8,033,190,214,900,356
5. Step 5: Solve for x
   x = 8,033,190,214,900,356/41,728,909.50
6. Step 6: Final answer
   x = 192,508,989.84