Finding the Third Proportional to 18,486.70 and 40,471.88

Step by Step Solution

1. Step 1: Write the proportion equation
   18,486.70 : 40,471.88 = 40,471.88 : x
2. Step 2: Convert to fraction form
   18,486.70/40,471.88 = 40,471.88/x
3. Step 3: Cross multiply
   18,486.70x = 40,471.88 × 40,471.88
4. Step 4: Simplify right side
   18,486.70x = 1,637,972,666.02
5. Step 5: Solve for x
   x = 1,637,972,666.02/18,486.70
6. Step 6: Final answer
   x = 88,602.75