Finding the Third Proportional to 366,912 and 561,310.88

Step by Step Solution

1. Step 1: Write the proportion equation
   366,912 : 561,310.88 = 561,310.88 : x
2. Step 2: Convert to fraction form
   366,912/561,310.88 = 561,310.88/x
3. Step 3: Cross multiply
   366,912x = 561,310.88 × 561,310.88
4. Step 4: Simplify right side
   366,912x = 315,069,898,393.27
5. Step 5: Solve for x
   x = 315,069,898,393.27/366,912
6. Step 6: Final answer
   x = 858,706.99