Finding the Third Proportional to 764,930 and 1,680,836

Step by Step Solution

1. Step 1: Write the proportion equation
   764,930 : 1,680,836 = 1,680,836 : x
2. Step 2: Convert to fraction form
   764,930/1,680,836 = 1,680,836/x
3. Step 3: Cross multiply
   764,930x = 1,680,836 × 1,680,836
4. Step 4: Simplify right side
   764,930x = 2,825,209,658,896
5. Step 5: Solve for x
   x = 2,825,209,658,896/764,930
6. Step 6: Final answer
   x = 3,693,422.48