Finding the Third Proportional to 1,666,280 and 3,450,712

Step by Step Solution

1. Step 1: Write the proportion equation
   1,666,280 : 3,450,712 = 3,450,712 : x
2. Step 2: Convert to fraction form
   1,666,280/3,450,712 = 3,450,712/x
3. Step 3: Cross multiply
   1,666,280x = 3,450,712 × 3,450,712
4. Step 4: Simplify right side
   1,666,280x = 11,907,413,306,944
5. Step 5: Solve for x
   x = 11,907,413,306,944/1,666,280
6. Step 6: Final answer
   x = 7,146,105.88