Finding the Third Proportional to 31,321.13 and 45,253.69

Step by Step Solution

1. Step 1: Write the proportion equation
   31,321.13 : 45,253.69 = 45,253.69 : x
2. Step 2: Convert to fraction form
   31,321.13/45,253.69 = 45,253.69/x
3. Step 3: Cross multiply
   31,321.13x = 45,253.69 × 45,253.69
4. Step 4: Simplify right side
   31,321.13x = 2,047,896,232.35
5. Step 5: Solve for x
   x = 2,047,896,232.35/31,321.13
6. Step 6: Final answer
   x = 65,383.87