Finding the Third Proportional to 40,402,932 and 86,478,456

Step by Step Solution

1. Step 1: Write the proportion equation
   40,402,932 : 86,478,456 = 86,478,456 : x
2. Step 2: Convert to fraction form
   40,402,932/86,478,456 = 86,478,456/x
3. Step 3: Cross multiply
   40,402,932x = 86,478,456 × 86,478,456
4. Step 4: Simplify right side
   40,402,932x = 7,478,523,352,143,936
5. Step 5: Solve for x
   x = 7,478,523,352,143,936/40,402,932
6. Step 6: Final answer
   x = 185,098,530.77