Finding the Third Proportional to 758,214 and 1,140,399

Step by Step Solution

1. Step 1: Write the proportion equation
   758,214 : 1,140,399 = 1,140,399 : x
2. Step 2: Convert to fraction form
   758,214/1,140,399 = 1,140,399/x
3. Step 3: Cross multiply
   758,214x = 1,140,399 × 1,140,399
4. Step 4: Simplify right side
   758,214x = 1,300,509,879,201
5. Step 5: Solve for x
   x = 1,300,509,879,201/758,214
6. Step 6: Final answer
   x = 1,715,228.00