Finding the Third Proportional to 31,234.64 and 45,680.48

Step by Step Solution

1. Step 1: Write the proportion equation
   31,234.64 : 45,680.48 = 45,680.48 : x
2. Step 2: Convert to fraction form
   31,234.64/45,680.48 = 45,680.48/x
3. Step 3: Cross multiply
   31,234.64x = 45,680.48 × 45,680.48
4. Step 4: Simplify right side
   31,234.64x = 2,086,706,652.73
5. Step 5: Solve for x
   x = 2,086,706,652.73/31,234.64
6. Step 6: Final answer
   x = 66,807.45