Finding the Third Proportional to 868,980 and 1,817,403

Step by Step Solution

1. Step 1: Write the proportion equation
   868,980 : 1,817,403 = 1,817,403 : x
2. Step 2: Convert to fraction form
   868,980/1,817,403 = 1,817,403/x
3. Step 3: Cross multiply
   868,980x = 1,817,403 × 1,817,403
4. Step 4: Simplify right side
   868,980x = 3,302,953,664,409
5. Step 5: Solve for x
   x = 3,302,953,664,409/868,980
6. Step 6: Final answer
   x = 3,800,954.76