Finding the Third Proportional to 31,063.50 and 67,376.81

Step by Step Solution

1. Step 1: Write the proportion equation
   31,063.50 : 67,376.81 = 67,376.81 : x
2. Step 2: Convert to fraction form
   31,063.50/67,376.81 = 67,376.81/x
3. Step 3: Cross multiply
   31,063.50x = 67,376.81 × 67,376.81
4. Step 4: Simplify right side
   31,063.50x = 4,539,634,862.66
5. Step 5: Solve for x
   x = 4,539,634,862.66/31,063.50
6. Step 6: Final answer
   x = 146,140.48