Finding the Third Proportional to 140,146 and 210,014

Step by Step Solution

1. Step 1: Write the proportion equation
   140,146 : 210,014 = 210,014 : x
2. Step 2: Convert to fraction form
   140,146/210,014 = 210,014/x
3. Step 3: Cross multiply
   140,146x = 210,014 × 210,014
4. Step 4: Simplify right side
   140,146x = 44,105,880,196
5. Step 5: Solve for x
   x = 44,105,880,196/140,146
6. Step 6: Final answer
   x = 314,713.80