Finding the Third Proportional to 608,909 and 1,377,210

Step by Step Solution

1. Step 1: Write the proportion equation
   608,909 : 1,377,210 = 1,377,210 : x
2. Step 2: Convert to fraction form
   608,909/1,377,210 = 1,377,210/x
3. Step 3: Cross multiply
   608,909x = 1,377,210 × 1,377,210
4. Step 4: Simplify right side
   608,909x = 1,896,707,384,100
5. Step 5: Solve for x
   x = 1,896,707,384,100/608,909
6. Step 6: Final answer
   x = 3,114,927.49