Finding the Third Proportional to 766,286 and 1,665,210

Step by Step Solution

1. Step 1: Write the proportion equation
   766,286 : 1,665,210 = 1,665,210 : x
2. Step 2: Convert to fraction form
   766,286/1,665,210 = 1,665,210/x
3. Step 3: Cross multiply
   766,286x = 1,665,210 × 1,665,210
4. Step 4: Simplify right side
   766,286x = 2,772,924,344,100
5. Step 5: Solve for x
   x = 2,772,924,344,100/766,286
6. Step 6: Final answer
   x = 3,618,654.58