Finding the Third Proportional to 688,134 and 1,619,042

Step by Step Solution

1. Step 1: Write the proportion equation
   688,134 : 1,619,042 = 1,619,042 : x
2. Step 2: Convert to fraction form
   688,134/1,619,042 = 1,619,042/x
3. Step 3: Cross multiply
   688,134x = 1,619,042 × 1,619,042
4. Step 4: Simplify right side
   688,134x = 2,621,296,997,764
5. Step 5: Solve for x
   x = 2,621,296,997,764/688,134
6. Step 6: Final answer
   x = 3,809,282.78