Finding the Third Proportional to 12,866,445 and 28,291,680

Step by Step Solution

1. Step 1: Write the proportion equation
   12,866,445 : 28,291,680 = 28,291,680 : x
2. Step 2: Convert to fraction form
   12,866,445/28,291,680 = 28,291,680/x
3. Step 3: Cross multiply
   12,866,445x = 28,291,680 × 28,291,680
4. Step 4: Simplify right side
   12,866,445x = 800,419,157,222,400
5. Step 5: Solve for x
   x = 800,419,157,222,400/12,866,445
6. Step 6: Final answer
   x = 62,209,814.54