Finding the Third Proportional to 264,798 and 404,124.75

Step by Step Solution

1. Step 1: Write the proportion equation
   264,798 : 404,124.75 = 404,124.75 : x
2. Step 2: Convert to fraction form
   264,798/404,124.75 = 404,124.75/x
3. Step 3: Cross multiply
   264,798x = 404,124.75 × 404,124.75
4. Step 4: Simplify right side
   264,798x = 163,316,813,562.56
5. Step 5: Solve for x
   x = 163,316,813,562.56/264,798
6. Step 6: Final answer
   x = 616,760.00