Finding the Third Proportional to 407,878.50 and 573,363

Step by Step Solution

1. Step 1: Write the proportion equation
   407,878.50 : 573,363 = 573,363 : x
2. Step 2: Convert to fraction form
   407,878.50/573,363 = 573,363/x
3. Step 3: Cross multiply
   407,878.50x = 573,363 × 573,363
4. Step 4: Simplify right side
   407,878.50x = 328,745,129,769
5. Step 5: Solve for x
   x = 328,745,129,769/407,878.50
6. Step 6: Final answer
   x = 805,987.89