Finding the Third Proportional to 56,215.83 and 85,474.83

Step by Step Solution

1. Step 1: Write the proportion equation
   56,215.83 : 85,474.83 = 85,474.83 : x
2. Step 2: Convert to fraction form
   56,215.83/85,474.83 = 85,474.83/x
3. Step 3: Cross multiply
   56,215.83x = 85,474.83 × 85,474.83
4. Step 4: Simplify right side
   56,215.83x = 7,305,946,243.00
5. Step 5: Solve for x
   x = 7,305,946,243.00/56,215.83
6. Step 6: Final answer
   x = 129,962.44