Finding the Third Proportional to 15,640,878 and 32,711,856

Step by Step Solution

1. Step 1: Write the proportion equation
   15,640,878 : 32,711,856 = 32,711,856 : x
2. Step 2: Convert to fraction form
   15,640,878/32,711,856 = 32,711,856/x
3. Step 3: Cross multiply
   15,640,878x = 32,711,856 × 32,711,856
4. Step 4: Simplify right side
   15,640,878x = 1,070,065,522,964,736
5. Step 5: Solve for x
   x = 1,070,065,522,964,736/15,640,878
6. Step 6: Final answer
   x = 68,414,671.03