Finding the Third Proportional to 31,302 and 67,911.75

Step by Step Solution

1. Step 1: Write the proportion equation
   31,302 : 67,911.75 = 67,911.75 : x
2. Step 2: Convert to fraction form
   31,302/67,911.75 = 67,911.75/x
3. Step 3: Cross multiply
   31,302x = 67,911.75 × 67,911.75
4. Step 4: Simplify right side
   31,302x = 4,612,005,788.06
5. Step 5: Solve for x
   x = 4,612,005,788.06/31,302
6. Step 6: Final answer
   x = 147,339.01