Finding the Third Proportional to 1,499,391 and 2,142,636

Step by Step Solution

1. Step 1: Write the proportion equation
   1,499,391 : 2,142,636 = 2,142,636 : x
2. Step 2: Convert to fraction form
   1,499,391/2,142,636 = 2,142,636/x
3. Step 3: Cross multiply
   1,499,391x = 2,142,636 × 2,142,636
4. Step 4: Simplify right side
   1,499,391x = 4,590,889,028,496
5. Step 5: Solve for x
   x = 4,590,889,028,496/1,499,391
6. Step 6: Final answer
   x = 3,061,835.79