Finding the Third Proportional to 525,216 and 764,860

Step by Step Solution

1. Step 1: Write the proportion equation
   525,216 : 764,860 = 764,860 : x
2. Step 2: Convert to fraction form
   525,216/764,860 = 764,860/x
3. Step 3: Cross multiply
   525,216x = 764,860 × 764,860
4. Step 4: Simplify right side
   525,216x = 585,010,819,600
5. Step 5: Solve for x
   x = 585,010,819,600/525,216
6. Step 6: Final answer
   x = 1,113,848.05