Finding the Third Proportional to 715,294 and 1,489,340

Step by Step Solution

1. Step 1: Write the proportion equation
   715,294 : 1,489,340 = 1,489,340 : x
2. Step 2: Convert to fraction form
   715,294/1,489,340 = 1,489,340/x
3. Step 3: Cross multiply
   715,294x = 1,489,340 × 1,489,340
4. Step 4: Simplify right side
   715,294x = 2,218,133,635,600
5. Step 5: Solve for x
   x = 2,218,133,635,600/715,294
6. Step 6: Final answer
   x = 3,101,009.70