Finding the Third Proportional to 55,309.50 and 85,043.25

Step by Step Solution

1. Step 1: Write the proportion equation
   55,309.50 : 85,043.25 = 85,043.25 : x
2. Step 2: Convert to fraction form
   55,309.50/85,043.25 = 85,043.25/x
3. Step 3: Cross multiply
   55,309.50x = 85,043.25 × 85,043.25
4. Step 4: Simplify right side
   55,309.50x = 7,232,354,370.56
5. Step 5: Solve for x
   x = 7,232,354,370.56/55,309.50
6. Step 6: Final answer
   x = 130,761.52