Finding the Third Proportional to 21,240.67 and 45,807.40

Step by Step Solution

1. Step 1: Write the proportion equation
   21,240.67 : 45,807.40 = 45,807.40 : x
2. Step 2: Convert to fraction form
   21,240.67/45,807.40 = 45,807.40/x
3. Step 3: Cross multiply
   21,240.67x = 45,807.40 × 45,807.40
4. Step 4: Simplify right side
   21,240.67x = 2,098,317,751.61
5. Step 5: Solve for x
   x = 2,098,317,751.61/21,240.67
6. Step 6: Final answer
   x = 98,787.75