Finding the Third Proportional to 210,801 and 308,314.50

Step by Step Solution

1. Step 1: Write the proportion equation
   210,801 : 308,314.50 = 308,314.50 : x
2. Step 2: Convert to fraction form
   210,801/308,314.50 = 308,314.50/x
3. Step 3: Cross multiply
   210,801x = 308,314.50 × 308,314.50
4. Step 4: Simplify right side
   210,801x = 95,057,830,910.25
5. Step 5: Solve for x
   x = 95,057,830,910.25/210,801
6. Step 6: Final answer
   x = 450,936.34