Finding the Third Proportional to 21,498.75 and 31,417.88

Step by Step Solution

1. Step 1: Write the proportion equation
   21,498.75 : 31,417.88 = 31,417.88 : x
2. Step 2: Convert to fraction form
   21,498.75/31,417.88 = 31,417.88/x
3. Step 3: Cross multiply
   21,498.75x = 31,417.88 × 31,417.88
4. Step 4: Simplify right side
   21,498.75x = 987,082,869.52
5. Step 5: Solve for x
   x = 987,082,869.52/21,498.75
6. Step 6: Final answer
   x = 45,913.50