Finding the Third Proportional to 31,036.61 and 45,734.78

Step by Step Solution

1. Step 1: Write the proportion equation
   31,036.61 : 45,734.78 = 45,734.78 : x
2. Step 2: Convert to fraction form
   31,036.61/45,734.78 = 45,734.78/x
3. Step 3: Cross multiply
   31,036.61x = 45,734.78 × 45,734.78
4. Step 4: Simplify right side
   31,036.61x = 2,091,670,394.64
5. Step 5: Solve for x
   x = 2,091,670,394.64/31,036.61
6. Step 6: Final answer
   x = 67,393.66