Finding the Third Proportional to 31,154.81 and 67,567.88

Step by Step Solution

1. Step 1: Write the proportion equation
   31,154.81 : 67,567.88 = 67,567.88 : x
2. Step 2: Convert to fraction form
   31,154.81/67,567.88 = 67,567.88/x
3. Step 3: Cross multiply
   31,154.81x = 67,567.88 × 67,567.88
4. Step 4: Simplify right side
   31,154.81x = 4,565,417,732.02
5. Step 5: Solve for x
   x = 4,565,417,732.02/31,154.81
6. Step 6: Final answer
   x = 146,539.73