Finding the Third Proportional to 42,388 and 91,528

Step by Step Solution

1. Step 1: Write the proportion equation
   42,388 : 91,528 = 91,528 : x
2. Step 2: Convert to fraction form
   42,388/91,528 = 91,528/x
3. Step 3: Cross multiply
   42,388x = 91,528 × 91,528
4. Step 4: Simplify right side
   42,388x = 8,377,374,784
5. Step 5: Solve for x
   x = 8,377,374,784/42,388
6. Step 6: Final answer
   x = 197,635.53