Finding the Third Proportional to 1,430,217 and 2,120,586

Step by Step Solution

1. Step 1: Write the proportion equation
   1,430,217 : 2,120,586 = 2,120,586 : x
2. Step 2: Convert to fraction form
   1,430,217/2,120,586 = 2,120,586/x
3. Step 3: Cross multiply
   1,430,217x = 2,120,586 × 2,120,586
4. Step 4: Simplify right side
   1,430,217x = 4,496,884,983,396
5. Step 5: Solve for x
   x = 4,496,884,983,396/1,430,217
6. Step 6: Final answer
   x = 3,144,197.69