Finding the Third Proportional to 758,430 and 1,621,836

Step by Step Solution

1. Step 1: Write the proportion equation
   758,430 : 1,621,836 = 1,621,836 : x
2. Step 2: Convert to fraction form
   758,430/1,621,836 = 1,621,836/x
3. Step 3: Cross multiply
   758,430x = 1,621,836 × 1,621,836
4. Step 4: Simplify right side
   758,430x = 2,630,352,010,896
5. Step 5: Solve for x
   x = 2,630,352,010,896/758,430
6. Step 6: Final answer
   x = 3,468,153.96