Finding the Third Proportional to 31,407.75 and 42,373.13

Step by Step Solution

1. Step 1: Write the proportion equation
   31,407.75 : 42,373.13 = 42,373.13 : x
2. Step 2: Convert to fraction form
   31,407.75/42,373.13 = 42,373.13/x
3. Step 3: Cross multiply
   31,407.75x = 42,373.13 × 42,373.13
4. Step 4: Simplify right side
   31,407.75x = 1,795,481,722.27
5. Step 5: Solve for x
   x = 1,795,481,722.27/31,407.75
6. Step 6: Final answer
   x = 57,166.84