Finding the Third Proportional to 18,545.06 and 40,643.72

Step by Step Solution

1. Step 1: Write the proportion equation
   18,545.06 : 40,643.72 = 40,643.72 : x
2. Step 2: Convert to fraction form
   18,545.06/40,643.72 = 40,643.72/x
3. Step 3: Cross multiply
   18,545.06x = 40,643.72 × 40,643.72
4. Step 4: Simplify right side
   18,545.06x = 1,651,911,873.83
5. Step 5: Solve for x
   x = 1,651,911,873.83/18,545.06
6. Step 6: Final answer
   x = 89,075.56