Finding the Third Proportional to 2,490.05 and 5,432.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,490.05 : 5,432.88 = 5,432.88 : x
2. Step 2: Convert to fraction form
   2,490.05/5,432.88 = 5,432.88/x
3. Step 3: Cross multiply
   2,490.05x = 5,432.88 × 5,432.88
4. Step 4: Simplify right side
   2,490.05x = 29,516,130.77
5. Step 5: Solve for x
   x = 29,516,130.77/2,490.05
6. Step 6: Final answer
   x = 11,853.64