Finding the Third Proportional to 238,521.38 and 518,454

Step by Step Solution

1. Step 1: Write the proportion equation
   238,521.38 : 518,454 = 518,454 : x
2. Step 2: Convert to fraction form
   238,521.38/518,454 = 518,454/x
3. Step 3: Cross multiply
   238,521.38x = 518,454 × 518,454
4. Step 4: Simplify right side
   238,521.38x = 268,794,550,116
5. Step 5: Solve for x
   x = 268,794,550,116/238,521.38
6. Step 6: Final answer
   x = 1,126,920.18