Finding the Third Proportional to 219,289 and 472,415.50

Step by Step Solution

1. Step 1: Write the proportion equation
   219,289 : 472,415.50 = 472,415.50 : x
2. Step 2: Convert to fraction form
   219,289/472,415.50 = 472,415.50/x
3. Step 3: Cross multiply
   219,289x = 472,415.50 × 472,415.50
4. Step 4: Simplify right side
   219,289x = 223,176,404,640.25
5. Step 5: Solve for x
   x = 223,176,404,640.25/219,289
6. Step 6: Final answer
   x = 1,017,727.31