Finding the Third Proportional to 31,921.59 and 69,371.44

Step by Step Solution

1. Step 1: Write the proportion equation
   31,921.59 : 69,371.44 = 69,371.44 : x
2. Step 2: Convert to fraction form
   31,921.59/69,371.44 = 69,371.44/x
3. Step 3: Cross multiply
   31,921.59x = 69,371.44 × 69,371.44
4. Step 4: Simplify right side
   31,921.59x = 4,812,396,340.82
5. Step 5: Solve for x
   x = 4,812,396,340.82/31,921.59
6. Step 6: Final answer
   x = 150,756.77