Finding the Third Proportional to 366,823.69 and 561,142.69

Step by Step Solution

1. Step 1: Write the proportion equation
   366,823.69 : 561,142.69 = 561,142.69 : x
2. Step 2: Convert to fraction form
   366,823.69/561,142.69 = 561,142.69/x
3. Step 3: Cross multiply
   366,823.69x = 561,142.69 × 561,142.69
4. Step 4: Simplify right side
   366,823.69x = 314,881,115,734.72
5. Step 5: Solve for x
   x = 314,881,115,734.72/366,823.69
6. Step 6: Final answer
   x = 858,399.08