Finding the Third Proportional to 1,698,120 and 2,508,300

Step by Step Solution

1. Step 1: Write the proportion equation
   1,698,120 : 2,508,300 = 2,508,300 : x
2. Step 2: Convert to fraction form
   1,698,120/2,508,300 = 2,508,300/x
3. Step 3: Cross multiply
   1,698,120x = 2,508,300 × 2,508,300
4. Step 4: Simplify right side
   1,698,120x = 6,291,568,890,000
5. Step 5: Solve for x
   x = 6,291,568,890,000/1,698,120
6. Step 6: Final answer
   x = 3,705,020.19