Finding the Third Proportional to 721,012 and 1,669,096

Step by Step Solution

1. Step 1: Write the proportion equation
   721,012 : 1,669,096 = 1,669,096 : x
2. Step 2: Convert to fraction form
   721,012/1,669,096 = 1,669,096/x
3. Step 3: Cross multiply
   721,012x = 1,669,096 × 1,669,096
4. Step 4: Simplify right side
   721,012x = 2,785,881,457,216
5. Step 5: Solve for x
   x = 2,785,881,457,216/721,012
6. Step 6: Final answer
   x = 3,863,848.95