Finding the Third Proportional to 18,830.81 and 40,577.63

Step by Step Solution

1. Step 1: Write the proportion equation
   18,830.81 : 40,577.63 = 40,577.63 : x
2. Step 2: Convert to fraction form
   18,830.81/40,577.63 = 40,577.63/x
3. Step 3: Cross multiply
   18,830.81x = 40,577.63 × 40,577.63
4. Step 4: Simplify right side
   18,830.81x = 1,646,543,650.64
5. Step 5: Solve for x
   x = 1,646,543,650.64/18,830.81
6. Step 6: Final answer
   x = 87,438.80