Finding the Third Proportional to 238,648.50 and 514,638

Step by Step Solution

1. Step 1: Write the proportion equation
   238,648.50 : 514,638 = 514,638 : x
2. Step 2: Convert to fraction form
   238,648.50/514,638 = 514,638/x
3. Step 3: Cross multiply
   238,648.50x = 514,638 × 514,638
4. Step 4: Simplify right side
   238,648.50x = 264,852,271,044
5. Step 5: Solve for x
   x = 264,852,271,044/238,648.50
6. Step 6: Final answer
   x = 1,109,800.69