Finding the Third Proportional to 815,840 and 1,767,248

Step by Step Solution

1. Step 1: Write the proportion equation
   815,840 : 1,767,248 = 1,767,248 : x
2. Step 2: Convert to fraction form
   815,840/1,767,248 = 1,767,248/x
3. Step 3: Cross multiply
   815,840x = 1,767,248 × 1,767,248
4. Step 4: Simplify right side
   815,840x = 3,123,165,493,504
5. Step 5: Solve for x
   x = 3,123,165,493,504/815,840
6. Step 6: Final answer
   x = 3,828,159.31