Finding the Third Proportional to 31,318.52 and 67,483.76

Step by Step Solution

1. Step 1: Write the proportion equation
   31,318.52 : 67,483.76 = 67,483.76 : x
2. Step 2: Convert to fraction form
   31,318.52/67,483.76 = 67,483.76/x
3. Step 3: Cross multiply
   31,318.52x = 67,483.76 × 67,483.76
4. Step 4: Simplify right side
   31,318.52x = 4,554,057,568.50
5. Step 5: Solve for x
   x = 4,554,057,568.50/31,318.52
6. Step 6: Final answer
   x = 145,410.99