Finding the Third Proportional to 782,648 and 1,715,344

Step by Step Solution

1. Step 1: Write the proportion equation
   782,648 : 1,715,344 = 1,715,344 : x
2. Step 2: Convert to fraction form
   782,648/1,715,344 = 1,715,344/x
3. Step 3: Cross multiply
   782,648x = 1,715,344 × 1,715,344
4. Step 4: Simplify right side
   782,648x = 2,942,405,038,336
5. Step 5: Solve for x
   x = 2,942,405,038,336/782,648
6. Step 6: Final answer
   x = 3,759,550.96