Finding the Third Proportional to 40,402,936 and 86,478,464

Step by Step Solution

1. Step 1: Write the proportion equation
   40,402,936 : 86,478,464 = 86,478,464 : x
2. Step 2: Convert to fraction form
   40,402,936/86,478,464 = 86,478,464/x
3. Step 3: Cross multiply
   40,402,936x = 86,478,464 × 86,478,464
4. Step 4: Simplify right side
   40,402,936x = 7,478,524,735,799,296
5. Step 5: Solve for x
   x = 7,478,524,735,799,296/40,402,936
6. Step 6: Final answer
   x = 185,098,546.69