Finding the Third Proportional to 692,612 and 1,440,640

Step by Step Solution

1. Step 1: Write the proportion equation
   692,612 : 1,440,640 = 1,440,640 : x
2. Step 2: Convert to fraction form
   692,612/1,440,640 = 1,440,640/x
3. Step 3: Cross multiply
   692,612x = 1,440,640 × 1,440,640
4. Step 4: Simplify right side
   692,612x = 2,075,443,609,600
5. Step 5: Solve for x
   x = 2,075,443,609,600/692,612
6. Step 6: Final answer
   x = 2,996,545.84