Finding the Third Proportional to 278,320.50 and 607,185

Step by Step Solution

1. Step 1: Write the proportion equation
   278,320.50 : 607,185 = 607,185 : x
2. Step 2: Convert to fraction form
   278,320.50/607,185 = 607,185/x
3. Step 3: Cross multiply
   278,320.50x = 607,185 × 607,185
4. Step 4: Simplify right side
   278,320.50x = 368,673,624,225
5. Step 5: Solve for x
   x = 368,673,624,225/278,320.50
6. Step 6: Final answer
   x = 1,324,636.97