Finding the Third Proportional to 31,438.13 and 42,008.63

Step by Step Solution

1. Step 1: Write the proportion equation
   31,438.13 : 42,008.63 = 42,008.63 : x
2. Step 2: Convert to fraction form
   31,438.13/42,008.63 = 42,008.63/x
3. Step 3: Cross multiply
   31,438.13x = 42,008.63 × 42,008.63
4. Step 4: Simplify right side
   31,438.13x = 1,764,724,574.39
5. Step 5: Solve for x
   x = 1,764,724,574.39/31,438.13
6. Step 6: Final answer
   x = 56,133.26