Finding the Third Proportional to 476,640 and 759,379.50

Step by Step Solution

1. Step 1: Write the proportion equation
   476,640 : 759,379.50 = 759,379.50 : x
2. Step 2: Convert to fraction form
   476,640/759,379.50 = 759,379.50/x
3. Step 3: Cross multiply
   476,640x = 759,379.50 × 759,379.50
4. Step 4: Simplify right side
   476,640x = 576,657,225,020.25
5. Step 5: Solve for x
   x = 576,657,225,020.25/476,640
6. Step 6: Final answer
   x = 1,209,838.09