Finding the Third Proportional to 666,978 and 1,460,448

Step by Step Solution

1. Step 1: Write the proportion equation
   666,978 : 1,460,448 = 1,460,448 : x
2. Step 2: Convert to fraction form
   666,978/1,460,448 = 1,460,448/x
3. Step 3: Cross multiply
   666,978x = 1,460,448 × 1,460,448
4. Step 4: Simplify right side
   666,978x = 2,132,908,360,704
5. Step 5: Solve for x
   x = 2,132,908,360,704/666,978
6. Step 6: Final answer
   x = 3,197,869.14