Finding the Third Proportional to 218,349 and 471,757.50

Step by Step Solution

1. Step 1: Write the proportion equation
   218,349 : 471,757.50 = 471,757.50 : x
2. Step 2: Convert to fraction form
   218,349/471,757.50 = 471,757.50/x
3. Step 3: Cross multiply
   218,349x = 471,757.50 × 471,757.50
4. Step 4: Simplify right side
   218,349x = 222,555,138,806.25
5. Step 5: Solve for x
   x = 222,555,138,806.25/218,349
6. Step 6: Final answer
   x = 1,019,263.38