Finding the Third Proportional to 870,140 and 1,868,816

Step by Step Solution

1. Step 1: Write the proportion equation
   870,140 : 1,868,816 = 1,868,816 : x
2. Step 2: Convert to fraction form
   870,140/1,868,816 = 1,868,816/x
3. Step 3: Cross multiply
   870,140x = 1,868,816 × 1,868,816
4. Step 4: Simplify right side
   870,140x = 3,492,473,241,856
5. Step 5: Solve for x
   x = 3,492,473,241,856/870,140
6. Step 6: Final answer
   x = 4,013,691.18