Finding the Third Proportional to 811,280 and 1,731,145

Step by Step Solution

1. Step 1: Write the proportion equation
   811,280 : 1,731,145 = 1,731,145 : x
2. Step 2: Convert to fraction form
   811,280/1,731,145 = 1,731,145/x
3. Step 3: Cross multiply
   811,280x = 1,731,145 × 1,731,145
4. Step 4: Simplify right side
   811,280x = 2,996,863,011,025
5. Step 5: Solve for x
   x = 2,996,863,011,025/811,280
6. Step 6: Final answer
   x = 3,693,993.46