Finding the Third Proportional to 31,225.50 and 63,423

Step by Step Solution

1. Step 1: Write the proportion equation
   31,225.50 : 63,423 = 63,423 : x
2. Step 2: Convert to fraction form
   31,225.50/63,423 = 63,423/x
3. Step 3: Cross multiply
   31,225.50x = 63,423 × 63,423
4. Step 4: Simplify right side
   31,225.50x = 4,022,476,929
5. Step 5: Solve for x
   x = 4,022,476,929/31,225.50
6. Step 6: Final answer
   x = 128,820.26