Finding the Third Proportional to 1,430,234 and 2,120,603

Step by Step Solution

1. Step 1: Write the proportion equation
   1,430,234 : 2,120,603 = 2,120,603 : x
2. Step 2: Convert to fraction form
   1,430,234/2,120,603 = 2,120,603/x
3. Step 3: Cross multiply
   1,430,234x = 2,120,603 × 2,120,603
4. Step 4: Simplify right side
   1,430,234x = 4,496,957,083,609
5. Step 5: Solve for x
   x = 4,496,957,083,609/1,430,234
6. Step 6: Final answer
   x = 3,144,210.73