Finding the Third Proportional to 238,470 and 518,355.50

Step by Step Solution

1. Step 1: Write the proportion equation
   238,470 : 518,355.50 = 518,355.50 : x
2. Step 2: Convert to fraction form
   238,470/518,355.50 = 518,355.50/x
3. Step 3: Cross multiply
   238,470x = 518,355.50 × 518,355.50
4. Step 4: Simplify right side
   238,470x = 268,692,424,380.25
5. Step 5: Solve for x
   x = 268,692,424,380.25/238,470
6. Step 6: Final answer
   x = 1,126,734.70