Finding the Third Proportional to 815,872 and 1,767,340

Step by Step Solution

1. Step 1: Write the proportion equation
   815,872 : 1,767,340 = 1,767,340 : x
2. Step 2: Convert to fraction form
   815,872/1,767,340 = 1,767,340/x
3. Step 3: Cross multiply
   815,872x = 1,767,340 × 1,767,340
4. Step 4: Simplify right side
   815,872x = 3,123,490,675,600
5. Step 5: Solve for x
   x = 3,123,490,675,600/815,872
6. Step 6: Final answer
   x = 3,828,407.74