Finding the Third Proportional to 652,890 and 1,438,188

Step by Step Solution

1. Step 1: Write the proportion equation
   652,890 : 1,438,188 = 1,438,188 : x
2. Step 2: Convert to fraction form
   652,890/1,438,188 = 1,438,188/x
3. Step 3: Cross multiply
   652,890x = 1,438,188 × 1,438,188
4. Step 4: Simplify right side
   652,890x = 2,068,384,723,344
5. Step 5: Solve for x
   x = 2,068,384,723,344/652,890
6. Step 6: Final answer
   x = 3,168,044.73