Finding the Third Proportional to 448,819.50 and 655,870.50

Step by Step Solution

1. Step 1: Write the proportion equation
   448,819.50 : 655,870.50 = 655,870.50 : x
2. Step 2: Convert to fraction form
   448,819.50/655,870.50 = 655,870.50/x
3. Step 3: Cross multiply
   448,819.50x = 655,870.50 × 655,870.50
4. Step 4: Simplify right side
   448,819.50x = 430,166,112,770.25
5. Step 5: Solve for x
   x = 430,166,112,770.25/448,819.50
6. Step 6: Final answer
   x = 958,439.00