Finding the Third Proportional to 684,856 and 1,475,120

Step by Step Solution

1. Step 1: Write the proportion equation
   684,856 : 1,475,120 = 1,475,120 : x
2. Step 2: Convert to fraction form
   684,856/1,475,120 = 1,475,120/x
3. Step 3: Cross multiply
   684,856x = 1,475,120 × 1,475,120
4. Step 4: Simplify right side
   684,856x = 2,175,979,014,400
5. Step 5: Solve for x
   x = 2,175,979,014,400/684,856
6. Step 6: Final answer
   x = 3,177,279.62