Finding the Third Proportional to 31,186.50 and 68,600.25

Step by Step Solution

1. Step 1: Write the proportion equation
   31,186.50 : 68,600.25 = 68,600.25 : x
2. Step 2: Convert to fraction form
   31,186.50/68,600.25 = 68,600.25/x
3. Step 3: Cross multiply
   31,186.50x = 68,600.25 × 68,600.25
4. Step 4: Simplify right side
   31,186.50x = 4,705,994,300.06
5. Step 5: Solve for x
   x = 4,705,994,300.06/31,186.50
6. Step 6: Final answer
   x = 150,898.44