Finding the Third Proportional to 55,145.81 and 77,655.59

Step by Step Solution

1. Step 1: Write the proportion equation
   55,145.81 : 77,655.59 = 77,655.59 : x
2. Step 2: Convert to fraction form
   55,145.81/77,655.59 = 77,655.59/x
3. Step 3: Cross multiply
   55,145.81x = 77,655.59 × 77,655.59
4. Step 4: Simplify right side
   55,145.81x = 6,030,390,027.30
5. Step 5: Solve for x
   x = 6,030,390,027.30/55,145.81
6. Step 6: Final answer
   x = 109,353.54