Finding the Third Proportional to 666,406 and 1,451,132

Step by Step Solution

1. Step 1: Write the proportion equation
   666,406 : 1,451,132 = 1,451,132 : x
2. Step 2: Convert to fraction form
   666,406/1,451,132 = 1,451,132/x
3. Step 3: Cross multiply
   666,406x = 1,451,132 × 1,451,132
4. Step 4: Simplify right side
   666,406x = 2,105,784,081,424
5. Step 5: Solve for x
   x = 2,105,784,081,424/666,406
6. Step 6: Final answer
   x = 3,159,911.65