Finding the Third Proportional to 2,988,300 and 4,471,890

Step by Step Solution

1. Step 1: Write the proportion equation
   2,988,300 : 4,471,890 = 4,471,890 : x
2. Step 2: Convert to fraction form
   2,988,300/4,471,890 = 4,471,890/x
3. Step 3: Cross multiply
   2,988,300x = 4,471,890 × 4,471,890
4. Step 4: Simplify right side
   2,988,300x = 19,997,800,172,100
5. Step 5: Solve for x
   x = 19,997,800,172,100/2,988,300
6. Step 6: Final answer
   x = 6,692,032.32