Finding the Third Proportional to 764,910 and 1,680,810

Step by Step Solution

1. Step 1: Write the proportion equation
   764,910 : 1,680,810 = 1,680,810 : x
2. Step 2: Convert to fraction form
   764,910/1,680,810 = 1,680,810/x
3. Step 3: Cross multiply
   764,910x = 1,680,810 × 1,680,810
4. Step 4: Simplify right side
   764,910x = 2,825,122,256,100
5. Step 5: Solve for x
   x = 2,825,122,256,100/764,910
6. Step 6: Final answer
   x = 3,693,404.79