Finding the Third Proportional to 688,186 and 1,619,152

Step by Step Solution

1. Step 1: Write the proportion equation
   688,186 : 1,619,152 = 1,619,152 : x
2. Step 2: Convert to fraction form
   688,186/1,619,152 = 1,619,152/x
3. Step 3: Cross multiply
   688,186x = 1,619,152 × 1,619,152
4. Step 4: Simplify right side
   688,186x = 2,621,653,199,104
5. Step 5: Solve for x
   x = 2,621,653,199,104/688,186
6. Step 6: Final answer
   x = 3,809,512.54