Finding the Third Proportional to 18,442.50 and 40,012.50

Step by Step Solution

1. Step 1: Write the proportion equation
   18,442.50 : 40,012.50 = 40,012.50 : x
2. Step 2: Convert to fraction form
   18,442.50/40,012.50 = 40,012.50/x
3. Step 3: Cross multiply
   18,442.50x = 40,012.50 × 40,012.50
4. Step 4: Simplify right side
   18,442.50x = 1,601,000,156.25
5. Step 5: Solve for x
   x = 1,601,000,156.25/18,442.50
6. Step 6: Final answer
   x = 86,810.36