Finding the Third Proportional to 764,800 and 1,662,272

Step by Step Solution

1. Step 1: Write the proportion equation
   764,800 : 1,662,272 = 1,662,272 : x
2. Step 2: Convert to fraction form
   764,800/1,662,272 = 1,662,272/x
3. Step 3: Cross multiply
   764,800x = 1,662,272 × 1,662,272
4. Step 4: Simplify right side
   764,800x = 2,763,148,201,984
5. Step 5: Solve for x
   x = 2,763,148,201,984/764,800
6. Step 6: Final answer
   x = 3,612,902.98