Finding the Third Proportional to 9,988,535.25 and 21,921,286.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,988,535.25 : 21,921,286.50 = 21,921,286.50 : x
2. Step 2: Convert to fraction form
   9,988,535.25/21,921,286.50 = 21,921,286.50/x
3. Step 3: Cross multiply
   9,988,535.25x = 21,921,286.50 × 21,921,286.50
4. Step 4: Simplify right side
   9,988,535.25x = 480,542,801,815,082.25
5. Step 5: Solve for x
   x = 480,542,801,815,082.25/9,988,535.25
6. Step 6: Final answer
   x = 48,109,436.45