Finding the Third Proportional to 709,278 and 1,061,404

Step by Step Solution

1. Step 1: Write the proportion equation
   709,278 : 1,061,404 = 1,061,404 : x
2. Step 2: Convert to fraction form
   709,278/1,061,404 = 1,061,404/x
3. Step 3: Cross multiply
   709,278x = 1,061,404 × 1,061,404
4. Step 4: Simplify right side
   709,278x = 1,126,578,451,216
5. Step 5: Solve for x
   x = 1,126,578,451,216/709,278
6. Step 6: Final answer
   x = 1,588,345.40