Finding the Third Proportional to 221,688 and 484,848

Step by Step Solution

1. Step 1: Write the proportion equation
   221,688 : 484,848 = 484,848 : x
2. Step 2: Convert to fraction form
   221,688/484,848 = 484,848/x
3. Step 3: Cross multiply
   221,688x = 484,848 × 484,848
4. Step 4: Simplify right side
   221,688x = 235,077,583,104
5. Step 5: Solve for x
   x = 235,077,583,104/221,688
6. Step 6: Final answer
   x = 1,060,398.32