Finding the Third Proportional to 668,316 and 1,036,410

Step by Step Solution

1. Step 1: Write the proportion equation
   668,316 : 1,036,410 = 1,036,410 : x
2. Step 2: Convert to fraction form
   668,316/1,036,410 = 1,036,410/x
3. Step 3: Cross multiply
   668,316x = 1,036,410 × 1,036,410
4. Step 4: Simplify right side
   668,316x = 1,074,145,688,100
5. Step 5: Solve for x
   x = 1,074,145,688,100/668,316
6. Step 6: Final answer
   x = 1,607,242.21