Finding the Third Proportional to 338,859 and 730,203.75

Step by Step Solution

1. Step 1: Write the proportion equation
   338,859 : 730,203.75 = 730,203.75 : x
2. Step 2: Convert to fraction form
   338,859/730,203.75 = 730,203.75/x
3. Step 3: Cross multiply
   338,859x = 730,203.75 × 730,203.75
4. Step 4: Simplify right side
   338,859x = 533,197,516,514.06
5. Step 5: Solve for x
   x = 533,197,516,514.06/338,859
6. Step 6: Final answer
   x = 1,573,508.50