Finding the Third Proportional to 31,012.88 and 67,937.06

Step by Step Solution

1. Step 1: Write the proportion equation
   31,012.88 : 67,937.06 = 67,937.06 : x
2. Step 2: Convert to fraction form
   31,012.88/67,937.06 = 67,937.06/x
3. Step 3: Cross multiply
   31,012.88x = 67,937.06 × 67,937.06
4. Step 4: Simplify right side
   31,012.88x = 4,615,444,461.13
5. Step 5: Solve for x
   x = 4,615,444,461.13/31,012.88
6. Step 6: Final answer
   x = 148,823.50