Finding the Third Proportional to 31,303.50 and 67,917

Step by Step Solution

1. Step 1: Write the proportion equation
   31,303.50 : 67,917 = 67,917 : x
2. Step 2: Convert to fraction form
   31,303.50/67,917 = 67,917/x
3. Step 3: Cross multiply
   31,303.50x = 67,917 × 67,917
4. Step 4: Simplify right side
   31,303.50x = 4,612,718,889
5. Step 5: Solve for x
   x = 4,612,718,889/31,303.50
6. Step 6: Final answer
   x = 147,354.73