Finding the Third Proportional to 174,870 and 221,804.50

Step by Step Solution

1. Step 1: Write the proportion equation
   174,870 : 221,804.50 = 221,804.50 : x
2. Step 2: Convert to fraction form
   174,870/221,804.50 = 221,804.50/x
3. Step 3: Cross multiply
   174,870x = 221,804.50 × 221,804.50
4. Step 4: Simplify right side
   174,870x = 49,197,236,220.25
5. Step 5: Solve for x
   x = 49,197,236,220.25/174,870
6. Step 6: Final answer
   x = 281,336.06