Finding the Third Proportional to 31,202.16 and 68,343.84

Step by Step Solution

1. Step 1: Write the proportion equation
   31,202.16 : 68,343.84 = 68,343.84 : x
2. Step 2: Convert to fraction form
   31,202.16/68,343.84 = 68,343.84/x
3. Step 3: Cross multiply
   31,202.16x = 68,343.84 × 68,343.84
4. Step 4: Simplify right side
   31,202.16x = 4,670,880,978.52
5. Step 5: Solve for x
   x = 4,670,880,978.52/31,202.16
6. Step 6: Final answer
   x = 149,697.38