Finding the Third Proportional to 683,300 and 1,061,643

Step by Step Solution

1. Step 1: Write the proportion equation
   683,300 : 1,061,643 = 1,061,643 : x
2. Step 2: Convert to fraction form
   683,300/1,061,643 = 1,061,643/x
3. Step 3: Cross multiply
   683,300x = 1,061,643 × 1,061,643
4. Step 4: Simplify right side
   683,300x = 1,127,085,859,449
5. Step 5: Solve for x
   x = 1,127,085,859,449/683,300
6. Step 6: Final answer
   x = 1,649,474.40