Finding the Third Proportional to 6,489,866 and 10,088,789

Step by Step Solution

1. Step 1: Write the proportion equation
   6,489,866 : 10,088,789 = 10,088,789 : x
2. Step 2: Convert to fraction form
   6,489,866/10,088,789 = 10,088,789/x
3. Step 3: Cross multiply
   6,489,866x = 10,088,789 × 10,088,789
4. Step 4: Simplify right side
   6,489,866x = 101,783,663,486,521
5. Step 5: Solve for x
   x = 101,783,663,486,521/6,489,866
6. Step 6: Final answer
   x = 15,683,476.90