Finding the Third Proportional to 56,918.25 and 85,308.75

Step by Step Solution

1. Step 1: Write the proportion equation
   56,918.25 : 85,308.75 = 85,308.75 : x
2. Step 2: Convert to fraction form
   56,918.25/85,308.75 = 85,308.75/x
3. Step 3: Cross multiply
   56,918.25x = 85,308.75 × 85,308.75
4. Step 4: Simplify right side
   56,918.25x = 7,277,582,826.56
5. Step 5: Solve for x
   x = 7,277,582,826.56/56,918.25
6. Step 6: Final answer
   x = 127,860.27