Finding the Third Proportional to 811,143 and 1,877,742

Step by Step Solution

1. Step 1: Write the proportion equation
   811,143 : 1,877,742 = 1,877,742 : x
2. Step 2: Convert to fraction form
   811,143/1,877,742 = 1,877,742/x
3. Step 3: Cross multiply
   811,143x = 1,877,742 × 1,877,742
4. Step 4: Simplify right side
   811,143x = 3,525,915,018,564
5. Step 5: Solve for x
   x = 3,525,915,018,564/811,143
6. Step 6: Final answer
   x = 4,346,847.62