Finding the Third Proportional to 407,876.50 and 573,360

Step by Step Solution

1. Step 1: Write the proportion equation
   407,876.50 : 573,360 = 573,360 : x
2. Step 2: Convert to fraction form
   407,876.50/573,360 = 573,360/x
3. Step 3: Cross multiply
   407,876.50x = 573,360 × 573,360
4. Step 4: Simplify right side
   407,876.50x = 328,741,689,600
5. Step 5: Solve for x
   x = 328,741,689,600/407,876.50
6. Step 6: Final answer
   x = 805,983.40