Finding the Third Proportional to 873,690 and 1,868,850

Step by Step Solution

1. Step 1: Write the proportion equation
   873,690 : 1,868,850 = 1,868,850 : x
2. Step 2: Convert to fraction form
   873,690/1,868,850 = 1,868,850/x
3. Step 3: Cross multiply
   873,690x = 1,868,850 × 1,868,850
4. Step 4: Simplify right side
   873,690x = 3,492,600,322,500
5. Step 5: Solve for x
   x = 3,492,600,322,500/873,690
6. Step 6: Final answer
   x = 3,997,528.10