Finding the Third Proportional to 608,911 and 1,377,215

Step by Step Solution

1. Step 1: Write the proportion equation
   608,911 : 1,377,215 = 1,377,215 : x
2. Step 2: Convert to fraction form
   608,911/1,377,215 = 1,377,215/x
3. Step 3: Cross multiply
   608,911x = 1,377,215 × 1,377,215
4. Step 4: Simplify right side
   608,911x = 1,896,721,156,225
5. Step 5: Solve for x
   x = 1,896,721,156,225/608,911
6. Step 6: Final answer
   x = 3,114,939.88