Finding the Third Proportional to 9,887,494 and 21,660,120

Step by Step Solution

1. Step 1: Write the proportion equation
   9,887,494 : 21,660,120 = 21,660,120 : x
2. Step 2: Convert to fraction form
   9,887,494/21,660,120 = 21,660,120/x
3. Step 3: Cross multiply
   9,887,494x = 21,660,120 × 21,660,120
4. Step 4: Simplify right side
   9,887,494x = 469,160,798,414,400
5. Step 5: Solve for x
   x = 469,160,798,414,400/9,887,494
6. Step 6: Final answer
   x = 47,449,919.91