Finding the Third Proportional to 304,696.50 and 648,759

Step by Step Solution

1. Step 1: Write the proportion equation
   304,696.50 : 648,759 = 648,759 : x
2. Step 2: Convert to fraction form
   304,696.50/648,759 = 648,759/x
3. Step 3: Cross multiply
   304,696.50x = 648,759 × 648,759
4. Step 4: Simplify right side
   304,696.50x = 420,888,240,081
5. Step 5: Solve for x
   x = 420,888,240,081/304,696.50
6. Step 6: Final answer
   x = 1,381,335.99