Finding the Third Proportional to 680,117 and 1,489,507

Step by Step Solution

1. Step 1: Write the proportion equation
   680,117 : 1,489,507 = 1,489,507 : x
2. Step 2: Convert to fraction form
   680,117/1,489,507 = 1,489,507/x
3. Step 3: Cross multiply
   680,117x = 1,489,507 × 1,489,507
4. Step 4: Simplify right side
   680,117x = 2,218,631,103,049
5. Step 5: Solve for x
   x = 2,218,631,103,049/680,117
6. Step 6: Final answer
   x = 3,262,131.52