Finding the Third Proportional to 31,726.13 and 69,683.63

Step by Step Solution

1. Step 1: Write the proportion equation
   31,726.13 : 69,683.63 = 69,683.63 : x
2. Step 2: Convert to fraction form
   31,726.13/69,683.63 = 69,683.63/x
3. Step 3: Cross multiply
   31,726.13x = 69,683.63 × 69,683.63
4. Step 4: Simplify right side
   31,726.13x = 4,855,807,593.14
5. Step 5: Solve for x
   x = 4,855,807,593.14/31,726.13
6. Step 6: Final answer
   x = 153,053.91