Finding the Third Proportional to 8,807,684 and 12,402,820

Step by Step Solution

1. Step 1: Write the proportion equation
   8,807,684 : 12,402,820 = 12,402,820 : x
2. Step 2: Convert to fraction form
   8,807,684/12,402,820 = 12,402,820/x
3. Step 3: Cross multiply
   8,807,684x = 12,402,820 × 12,402,820
4. Step 4: Simplify right side
   8,807,684x = 153,829,943,952,400
5. Step 5: Solve for x
   x = 153,829,943,952,400/8,807,684
6. Step 6: Final answer
   x = 17,465,424.96