Finding the Third Proportional to 759,686 and 1,621,068

Step by Step Solution

1. Step 1: Write the proportion equation
   759,686 : 1,621,068 = 1,621,068 : x
2. Step 2: Convert to fraction form
   759,686/1,621,068 = 1,621,068/x
3. Step 3: Cross multiply
   759,686x = 1,621,068 × 1,621,068
4. Step 4: Simplify right side
   759,686x = 2,627,861,460,624
5. Step 5: Solve for x
   x = 2,627,861,460,624/759,686
6. Step 6: Final answer
   x = 3,459,141.62