Finding the Third Proportional to 769,356 and 1,680,318

Step by Step Solution

1. Step 1: Write the proportion equation
   769,356 : 1,680,318 = 1,680,318 : x
2. Step 2: Convert to fraction form
   769,356/1,680,318 = 1,680,318/x
3. Step 3: Cross multiply
   769,356x = 1,680,318 × 1,680,318
4. Step 4: Simplify right side
   769,356x = 2,823,468,581,124
5. Step 5: Solve for x
   x = 2,823,468,581,124/769,356
6. Step 6: Final answer
   x = 3,669,911.69