Finding the Third Proportional to 18,157.50 and 42,396.75

Step by Step Solution

1. Step 1: Write the proportion equation
   18,157.50 : 42,396.75 = 42,396.75 : x
2. Step 2: Convert to fraction form
   18,157.50/42,396.75 = 42,396.75/x
3. Step 3: Cross multiply
   18,157.50x = 42,396.75 × 42,396.75
4. Step 4: Simplify right side
   18,157.50x = 1,797,484,410.56
5. Step 5: Solve for x
   x = 1,797,484,410.56/18,157.50
6. Step 6: Final answer
   x = 98,994.05