Finding the Third Proportional to 36,619.88 and 55,321.88

Step by Step Solution

1. Step 1: Write the proportion equation
   36,619.88 : 55,321.88 = 55,321.88 : x
2. Step 2: Convert to fraction form
   36,619.88/55,321.88 = 55,321.88/x
3. Step 3: Cross multiply
   36,619.88x = 55,321.88 × 55,321.88
4. Step 4: Simplify right side
   36,619.88x = 3,060,509,853.52
5. Step 5: Solve for x
   x = 3,060,509,853.52/36,619.88
6. Step 6: Final answer
   x = 83,575.10