Finding the Third Proportional to 2,607.56 and 5,430.94

Step by Step Solution

1. Step 1: Write the proportion equation
   2,607.56 : 5,430.94 = 5,430.94 : x
2. Step 2: Convert to fraction form
   2,607.56/5,430.94 = 5,430.94/x
3. Step 3: Cross multiply
   2,607.56x = 5,430.94 × 5,430.94
4. Step 4: Simplify right side
   2,607.56x = 29,495,082.13
5. Step 5: Solve for x
   x = 29,495,082.13/2,607.56
6. Step 6: Final answer
   x = 11,311.36