Finding the Third Proportional to 873,612 and 1,868,672

Step by Step Solution

1. Step 1: Write the proportion equation
   873,612 : 1,868,672 = 1,868,672 : x
2. Step 2: Convert to fraction form
   873,612/1,868,672 = 1,868,672/x
3. Step 3: Cross multiply
   873,612x = 1,868,672 × 1,868,672
4. Step 4: Simplify right side
   873,612x = 3,491,935,043,584
5. Step 5: Solve for x
   x = 3,491,935,043,584/873,612
6. Step 6: Final answer
   x = 3,997,123.49