Finding the Third Proportional to 366,759 and 561,037.50

Step by Step Solution

1. Step 1: Write the proportion equation
   366,759 : 561,037.50 = 561,037.50 : x
2. Step 2: Convert to fraction form
   366,759/561,037.50 = 561,037.50/x
3. Step 3: Cross multiply
   366,759x = 561,037.50 × 561,037.50
4. Step 4: Simplify right side
   366,759x = 314,763,076,406.25
5. Step 5: Solve for x
   x = 314,763,076,406.25/366,759
6. Step 6: Final answer
   x = 858,228.64