Finding the Third Proportional to 338,742 and 740,461.50

Step by Step Solution

1. Step 1: Write the proportion equation
   338,742 : 740,461.50 = 740,461.50 : x
2. Step 2: Convert to fraction form
   338,742/740,461.50 = 740,461.50/x
3. Step 3: Cross multiply
   338,742x = 740,461.50 × 740,461.50
4. Step 4: Simplify right side
   338,742x = 548,283,232,982.25
5. Step 5: Solve for x
   x = 548,283,232,982.25/338,742
6. Step 6: Final answer
   x = 1,618,586.51