Finding the Third Proportional to 2,528.72 and 3,777.89

Step by Step Solution

1. Step 1: Write the proportion equation
   2,528.72 : 3,777.89 = 3,777.89 : x
2. Step 2: Convert to fraction form
   2,528.72/3,777.89 = 3,777.89/x
3. Step 3: Cross multiply
   2,528.72x = 3,777.89 × 3,777.89
4. Step 4: Simplify right side
   2,528.72x = 14,272,457.57
5. Step 5: Solve for x
   x = 14,272,457.57/2,528.72
6. Step 6: Final answer
   x = 5,644.15