Finding the Third Proportional to 140,787 and 210,460.50

Step by Step Solution

1. Step 1: Write the proportion equation
   140,787 : 210,460.50 = 210,460.50 : x
2. Step 2: Convert to fraction form
   140,787/210,460.50 = 210,460.50/x
3. Step 3: Cross multiply
   140,787x = 210,460.50 × 210,460.50
4. Step 4: Simplify right side
   140,787x = 44,293,622,060.25
5. Step 5: Solve for x
   x = 44,293,622,060.25/140,787
6. Step 6: Final answer
   x = 314,614.43