Finding the Third Proportional to 31,449 and 65,449.50

Step by Step Solution

1. Step 1: Write the proportion equation
   31,449 : 65,449.50 = 65,449.50 : x
2. Step 2: Convert to fraction form
   31,449/65,449.50 = 65,449.50/x
3. Step 3: Cross multiply
   31,449x = 65,449.50 × 65,449.50
4. Step 4: Simplify right side
   31,449x = 4,283,637,050.25
5. Step 5: Solve for x
   x = 4,283,637,050.25/31,449
6. Step 6: Final answer
   x = 136,209.01