Finding the Third Proportional to 31,103.25 and 67,066.50

Step by Step Solution

1. Step 1: Write the proportion equation
   31,103.25 : 67,066.50 = 67,066.50 : x
2. Step 2: Convert to fraction form
   31,103.25/67,066.50 = 67,066.50/x
3. Step 3: Cross multiply
   31,103.25x = 67,066.50 × 67,066.50
4. Step 4: Simplify right side
   31,103.25x = 4,497,915,422.25
5. Step 5: Solve for x
   x = 4,497,915,422.25/31,103.25
6. Step 6: Final answer
   x = 144,612.39