Finding the Third Proportional to 1,551,490 and 3,290,788

Step by Step Solution

1. Step 1: Write the proportion equation
   1,551,490 : 3,290,788 = 3,290,788 : x
2. Step 2: Convert to fraction form
   1,551,490/3,290,788 = 3,290,788/x
3. Step 3: Cross multiply
   1,551,490x = 3,290,788 × 3,290,788
4. Step 4: Simplify right side
   1,551,490x = 10,829,285,660,944
5. Step 5: Solve for x
   x = 10,829,285,660,944/1,551,490
6. Step 6: Final answer
   x = 6,979,926.17