Finding the Third Proportional to 152,118 and 221,373

Step by Step Solution

1. Step 1: Write the proportion equation
   152,118 : 221,373 = 221,373 : x
2. Step 2: Convert to fraction form
   152,118/221,373 = 221,373/x
3. Step 3: Cross multiply
   152,118x = 221,373 × 221,373
4. Step 4: Simplify right side
   152,118x = 49,006,005,129
5. Step 5: Solve for x
   x = 49,006,005,129/152,118
6. Step 6: Final answer
   x = 322,157.83