Finding the Third Proportional to 851,502 and 1,866,300

Step by Step Solution

1. Step 1: Write the proportion equation
   851,502 : 1,866,300 = 1,866,300 : x
2. Step 2: Convert to fraction form
   851,502/1,866,300 = 1,866,300/x
3. Step 3: Cross multiply
   851,502x = 1,866,300 × 1,866,300
4. Step 4: Simplify right side
   851,502x = 3,483,075,690,000
5. Step 5: Solve for x
   x = 3,483,075,690,000/851,502
6. Step 6: Final answer
   x = 4,090,507.94