Finding the Third Proportional to 642,237 and 1,000,116

Step by Step Solution

1. Step 1: Write the proportion equation
   642,237 : 1,000,116 = 1,000,116 : x
2. Step 2: Convert to fraction form
   642,237/1,000,116 = 1,000,116/x
3. Step 3: Cross multiply
   642,237x = 1,000,116 × 1,000,116
4. Step 4: Simplify right side
   642,237x = 1,000,232,013,456
5. Step 5: Solve for x
   x = 1,000,232,013,456/642,237
6. Step 6: Final answer
   x = 1,557,418.86