Finding the Third Proportional to 18,350.30 and 42,518.36

Step by Step Solution

1. Step 1: Write the proportion equation
   18,350.30 : 42,518.36 = 42,518.36 : x
2. Step 2: Convert to fraction form
   18,350.30/42,518.36 = 42,518.36/x
3. Step 3: Cross multiply
   18,350.30x = 42,518.36 × 42,518.36
4. Step 4: Simplify right side
   18,350.30x = 1,807,810,551.77
5. Step 5: Solve for x
   x = 1,807,810,551.77/18,350.30
6. Step 6: Final answer
   x = 98,516.69