Finding the Third Proportional to 2,125,780 and 3,158,389

Step by Step Solution

1. Step 1: Write the proportion equation
   2,125,780 : 3,158,389 = 3,158,389 : x
2. Step 2: Convert to fraction form
   2,125,780/3,158,389 = 3,158,389/x
3. Step 3: Cross multiply
   2,125,780x = 3,158,389 × 3,158,389
4. Step 4: Simplify right side
   2,125,780x = 9,975,421,075,321
5. Step 5: Solve for x
   x = 9,975,421,075,321/2,125,780
6. Step 6: Final answer
   x = 4,692,593.34