Finding the Third Proportional to 1,300.85 and 2,790.07

Step by Step Solution

1. Step 1: Write the proportion equation
   1,300.85 : 2,790.07 = 2,790.07 : x
2. Step 2: Convert to fraction form
   1,300.85/2,790.07 = 2,790.07/x
3. Step 3: Cross multiply
   1,300.85x = 2,790.07 × 2,790.07
4. Step 4: Simplify right side
   1,300.85x = 7,784,492.35
5. Step 5: Solve for x
   x = 7,784,492.35/1,300.85
6. Step 6: Final answer
   x = 5,984.15