Finding the Third Proportional to 2,961.56 and 4,687.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,961.56 : 4,687.88 = 4,687.88 : x
2. Step 2: Convert to fraction form
   2,961.56/4,687.88 = 4,687.88/x
3. Step 3: Cross multiply
   2,961.56x = 4,687.88 × 4,687.88
4. Step 4: Simplify right side
   2,961.56x = 21,976,172.02
5. Step 5: Solve for x
   x = 21,976,172.02/2,961.56
6. Step 6: Final answer
   x = 7,420.47