Finding the Third Proportional to 6,402,609 and 9,766,521

Step by Step Solution

1. Step 1: Write the proportion equation
   6,402,609 : 9,766,521 = 9,766,521 : x
2. Step 2: Convert to fraction form
   6,402,609/9,766,521 = 9,766,521/x
3. Step 3: Cross multiply
   6,402,609x = 9,766,521 × 9,766,521
4. Step 4: Simplify right side
   6,402,609x = 95,384,932,443,441
5. Step 5: Solve for x
   x = 95,384,932,443,441/6,402,609
6. Step 6: Final answer
   x = 14,897,822.50