Finding the Third Proportional to 345,662.25 and 715,300.50

Step by Step Solution

1. Step 1: Write the proportion equation
   345,662.25 : 715,300.50 = 715,300.50 : x
2. Step 2: Convert to fraction form
   345,662.25/715,300.50 = 715,300.50/x
3. Step 3: Cross multiply
   345,662.25x = 715,300.50 × 715,300.50
4. Step 4: Simplify right side
   345,662.25x = 511,654,805,300.25
5. Step 5: Solve for x
   x = 511,654,805,300.25/345,662.25
6. Step 6: Final answer
   x = 1,480,216.04