Finding the Third Proportional to 31,429.13 and 67,775.63

Step by Step Solution

1. Step 1: Write the proportion equation
   31,429.13 : 67,775.63 = 67,775.63 : x
2. Step 2: Convert to fraction form
   31,429.13/67,775.63 = 67,775.63/x
3. Step 3: Cross multiply
   31,429.13x = 67,775.63 × 67,775.63
4. Step 4: Simplify right side
   31,429.13x = 4,593,535,344.14
5. Step 5: Solve for x
   x = 4,593,535,344.14/31,429.13
6. Step 6: Final answer
   x = 146,155.37