Finding the Third Proportional to 56,272.31 and 85,837.88

Step by Step Solution

1. Step 1: Write the proportion equation
   56,272.31 : 85,837.88 = 85,837.88 : x
2. Step 2: Convert to fraction form
   56,272.31/85,837.88 = 85,837.88/x
3. Step 3: Cross multiply
   56,272.31x = 85,837.88 × 85,837.88
4. Step 4: Simplify right side
   56,272.31x = 7,368,140,784.52
5. Step 5: Solve for x
   x = 7,368,140,784.52/56,272.31
6. Step 6: Final answer
   x = 130,937.23