Finding the Third Proportional to 55,437.75 and 85,343.63

Step by Step Solution

1. Step 1: Write the proportion equation
   55,437.75 : 85,343.63 = 85,343.63 : x
2. Step 2: Convert to fraction form
   55,437.75/85,343.63 = 85,343.63/x
3. Step 3: Cross multiply
   55,437.75x = 85,343.63 × 85,343.63
4. Step 4: Simplify right side
   55,437.75x = 7,283,534,328.14
5. Step 5: Solve for x
   x = 7,283,534,328.14/55,437.75
6. Step 6: Final answer
   x = 131,382.21