Finding the Third Proportional to 2,429.14 and 5,320.40

Step by Step Solution

1. Step 1: Write the proportion equation
   2,429.14 : 5,320.40 = 5,320.40 : x
2. Step 2: Convert to fraction form
   2,429.14/5,320.40 = 5,320.40/x
3. Step 3: Cross multiply
   2,429.14x = 5,320.40 × 5,320.40
4. Step 4: Simplify right side
   2,429.14x = 28,306,664.21
5. Step 5: Solve for x
   x = 28,306,664.21/2,429.14
6. Step 6: Final answer
   x = 11,652.96