Finding the Third Proportional to 315,317.81 and 740,259

Step by Step Solution

1. Step 1: Write the proportion equation
   315,317.81 : 740,259 = 740,259 : x
2. Step 2: Convert to fraction form
   315,317.81/740,259 = 740,259/x
3. Step 3: Cross multiply
   315,317.81x = 740,259 × 740,259
4. Step 4: Simplify right side
   315,317.81x = 547,983,387,081
5. Step 5: Solve for x
   x = 547,983,387,081/315,317.81
6. Step 6: Final answer
   x = 1,737,876.41