Finding the Third Proportional to 42,442.13 and 89,943.56

Step by Step Solution

1. Step 1: Write the proportion equation
   42,442.13 : 89,943.56 = 89,943.56 : x
2. Step 2: Convert to fraction form
   42,442.13/89,943.56 = 89,943.56/x
3. Step 3: Cross multiply
   42,442.13x = 89,943.56 × 89,943.56
4. Step 4: Simplify right side
   42,442.13x = 8,089,844,435.19
5. Step 5: Solve for x
   x = 8,089,844,435.19/42,442.13
6. Step 6: Final answer
   x = 190,608.85