Finding the Third Proportional to 338,908.50 and 730,345.50

Step by Step Solution

1. Step 1: Write the proportion equation
   338,908.50 : 730,345.50 = 730,345.50 : x
2. Step 2: Convert to fraction form
   338,908.50/730,345.50 = 730,345.50/x
3. Step 3: Cross multiply
   338,908.50x = 730,345.50 × 730,345.50
4. Step 4: Simplify right side
   338,908.50x = 533,404,549,370.25
5. Step 5: Solve for x
   x = 533,404,549,370.25/338,908.50
6. Step 6: Final answer
   x = 1,573,889.56