Finding the Third Proportional to 219,140 and 471,570.50

Step by Step Solution

1. Step 1: Write the proportion equation
   219,140 : 471,570.50 = 471,570.50 : x
2. Step 2: Convert to fraction form
   219,140/471,570.50 = 471,570.50/x
3. Step 3: Cross multiply
   219,140x = 471,570.50 × 471,570.50
4. Step 4: Simplify right side
   219,140x = 222,378,736,470.25
5. Step 5: Solve for x
   x = 222,378,736,470.25/219,140
6. Step 6: Final answer
   x = 1,014,779.30