Finding the Third Proportional to 42,004 and 91,389

Step by Step Solution

1. Step 1: Write the proportion equation
   42,004 : 91,389 = 91,389 : x
2. Step 2: Convert to fraction form
   42,004/91,389 = 91,389/x
3. Step 3: Cross multiply
   42,004x = 91,389 × 91,389
4. Step 4: Simplify right side
   42,004x = 8,351,949,321
5. Step 5: Solve for x
   x = 8,351,949,321/42,004
6. Step 6: Final answer
   x = 198,837.00