Finding the Third Proportional to 709,280 and 1,061,407

Step by Step Solution

1. Step 1: Write the proportion equation
   709,280 : 1,061,407 = 1,061,407 : x
2. Step 2: Convert to fraction form
   709,280/1,061,407 = 1,061,407/x
3. Step 3: Cross multiply
   709,280x = 1,061,407 × 1,061,407
4. Step 4: Simplify right side
   709,280x = 1,126,584,819,649
5. Step 5: Solve for x
   x = 1,126,584,819,649/709,280
6. Step 6: Final answer
   x = 1,588,349.90