Finding the Third Proportional to 1,042.88 and 2,219.91

Step by Step Solution

1. Step 1: Write the proportion equation
   1,042.88 : 2,219.91 = 2,219.91 : x
2. Step 2: Convert to fraction form
   1,042.88/2,219.91 = 2,219.91/x
3. Step 3: Cross multiply
   1,042.88x = 2,219.91 × 2,219.91
4. Step 4: Simplify right side
   1,042.88x = 4,927,983.76
5. Step 5: Solve for x
   x = 4,927,983.76/1,042.88
6. Step 6: Final answer
   x = 4,725.38