Finding the Third Proportional to 782,554 and 1,243,870

Step by Step Solution

1. Step 1: Write the proportion equation
   782,554 : 1,243,870 = 1,243,870 : x
2. Step 2: Convert to fraction form
   782,554/1,243,870 = 1,243,870/x
3. Step 3: Cross multiply
   782,554x = 1,243,870 × 1,243,870
4. Step 4: Simplify right side
   782,554x = 1,547,212,576,900
5. Step 5: Solve for x
   x = 1,547,212,576,900/782,554
6. Step 6: Final answer
   x = 1,977,132.03