Finding the Third Proportional to 31,884 and 70,057.50

Step by Step Solution

1. Step 1: Write the proportion equation
   31,884 : 70,057.50 = 70,057.50 : x
2. Step 2: Convert to fraction form
   31,884/70,057.50 = 70,057.50/x
3. Step 3: Cross multiply
   31,884x = 70,057.50 × 70,057.50
4. Step 4: Simplify right side
   31,884x = 4,908,053,306.25
5. Step 5: Solve for x
   x = 4,908,053,306.25/31,884
6. Step 6: Final answer
   x = 153,934.68