Finding the Third Proportional to 721,849 and 1,009,159

Step by Step Solution

1. Step 1: Write the proportion equation
   721,849 : 1,009,159 = 1,009,159 : x
2. Step 2: Convert to fraction form
   721,849/1,009,159 = 1,009,159/x
3. Step 3: Cross multiply
   721,849x = 1,009,159 × 1,009,159
4. Step 4: Simplify right side
   721,849x = 1,018,401,887,281
5. Step 5: Solve for x
   x = 1,018,401,887,281/721,849
6. Step 6: Final answer
   x = 1,410,823.99