Finding the Third Proportional to 1,776.30 and 2,490.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,776.30 : 2,490.12 = 2,490.12 : x
2. Step 2: Convert to fraction form
   1,776.30/2,490.12 = 2,490.12/x
3. Step 3: Cross multiply
   1,776.30x = 2,490.12 × 2,490.12
4. Step 4: Simplify right side
   1,776.30x = 6,200,683.61
5. Step 5: Solve for x
   x = 6,200,683.61/1,776.30
6. Step 6: Final answer
   x = 3,490.78