Finding the Third Proportional to 31,144.50 and 70,085.25

Step by Step Solution

1. Step 1: Write the proportion equation
   31,144.50 : 70,085.25 = 70,085.25 : x
2. Step 2: Convert to fraction form
   31,144.50/70,085.25 = 70,085.25/x
3. Step 3: Cross multiply
   31,144.50x = 70,085.25 × 70,085.25
4. Step 4: Simplify right side
   31,144.50x = 4,911,942,267.56
5. Step 5: Solve for x
   x = 4,911,942,267.56/31,144.50
6. Step 6: Final answer
   x = 157,714.60