Finding the Third Proportional to 315,522 and 675,376.50

Step by Step Solution

1. Step 1: Write the proportion equation
   315,522 : 675,376.50 = 675,376.50 : x
2. Step 2: Convert to fraction form
   315,522/675,376.50 = 675,376.50/x
3. Step 3: Cross multiply
   315,522x = 675,376.50 × 675,376.50
4. Step 4: Simplify right side
   315,522x = 456,133,416,752.25
5. Step 5: Solve for x
   x = 456,133,416,752.25/315,522
6. Step 6: Final answer
   x = 1,445,646.95