Finding the Third Proportional to 2,980.13 and 3,972.94

Step by Step Solution

1. Step 1: Write the proportion equation
   2,980.13 : 3,972.94 = 3,972.94 : x
2. Step 2: Convert to fraction form
   2,980.13/3,972.94 = 3,972.94/x
3. Step 3: Cross multiply
   2,980.13x = 3,972.94 × 3,972.94
4. Step 4: Simplify right side
   2,980.13x = 15,784,232.38
5. Step 5: Solve for x
   x = 15,784,232.38/2,980.13
6. Step 6: Final answer
   x = 5,296.50