Finding the Third Proportional to 55,150.88 and 77,663.81

Step by Step Solution

1. Step 1: Write the proportion equation
   55,150.88 : 77,663.81 = 77,663.81 : x
2. Step 2: Convert to fraction form
   55,150.88/77,663.81 = 77,663.81/x
3. Step 3: Cross multiply
   55,150.88x = 77,663.81 × 77,663.81
4. Step 4: Simplify right side
   55,150.88x = 6,031,667,772.04
5. Step 5: Solve for x
   x = 6,031,667,772.04/55,150.88
6. Step 6: Final answer
   x = 109,366.67