Finding the Third Proportional to 156,249 and 324,769.50

Step by Step Solution

1. Step 1: Write the proportion equation
   156,249 : 324,769.50 = 324,769.50 : x
2. Step 2: Convert to fraction form
   156,249/324,769.50 = 324,769.50/x
3. Step 3: Cross multiply
   156,249x = 324,769.50 × 324,769.50
4. Step 4: Simplify right side
   156,249x = 105,475,228,130.25
5. Step 5: Solve for x
   x = 105,475,228,130.25/156,249
6. Step 6: Final answer
   x = 675,045.78