Finding the Third Proportional to 216,660 and 483,109.50

Step by Step Solution

1. Step 1: Write the proportion equation
   216,660 : 483,109.50 = 483,109.50 : x
2. Step 2: Convert to fraction form
   216,660/483,109.50 = 483,109.50/x
3. Step 3: Cross multiply
   216,660x = 483,109.50 × 483,109.50
4. Step 4: Simplify right side
   216,660x = 233,394,788,990.25
5. Step 5: Solve for x
   x = 233,394,788,990.25/216,660
6. Step 6: Final answer
   x = 1,077,239.86