Finding the Third Proportional to 210,870 and 248,049

Step by Step Solution

1. Step 1: Write the proportion equation
   210,870 : 248,049 = 248,049 : x
2. Step 2: Convert to fraction form
   210,870/248,049 = 248,049/x
3. Step 3: Cross multiply
   210,870x = 248,049 × 248,049
4. Step 4: Simplify right side
   210,870x = 61,528,306,401
5. Step 5: Solve for x
   x = 61,528,306,401/210,870
6. Step 6: Final answer
   x = 291,783.12