Finding the Third Proportional to 872,150 and 1,870,380

Step by Step Solution

1. Step 1: Write the proportion equation
   872,150 : 1,870,380 = 1,870,380 : x
2. Step 2: Convert to fraction form
   872,150/1,870,380 = 1,870,380/x
3. Step 3: Cross multiply
   872,150x = 1,870,380 × 1,870,380
4. Step 4: Simplify right side
   872,150x = 3,498,321,344,400
5. Step 5: Solve for x
   x = 3,498,321,344,400/872,150
6. Step 6: Final answer
   x = 4,011,146.41