Finding the Third Proportional to 42,338 and 90,507

Step by Step Solution

1. Step 1: Write the proportion equation
   42,338 : 90,507 = 90,507 : x
2. Step 2: Convert to fraction form
   42,338/90,507 = 90,507/x
3. Step 3: Cross multiply
   42,338x = 90,507 × 90,507
4. Step 4: Simplify right side
   42,338x = 8,191,517,049
5. Step 5: Solve for x
   x = 8,191,517,049/42,338
6. Step 6: Final answer
   x = 193,479.07