Finding the Third Proportional to 758,422 and 1,621,819

Step by Step Solution

1. Step 1: Write the proportion equation
   758,422 : 1,621,819 = 1,621,819 : x
2. Step 2: Convert to fraction form
   758,422/1,621,819 = 1,621,819/x
3. Step 3: Cross multiply
   758,422x = 1,621,819 × 1,621,819
4. Step 4: Simplify right side
   758,422x = 2,630,296,868,761
5. Step 5: Solve for x
   x = 2,630,296,868,761/758,422
6. Step 6: Final answer
   x = 3,468,117.84