Finding the Third Proportional to 349,515 and 764,446.50

Step by Step Solution

1. Step 1: Write the proportion equation
   349,515 : 764,446.50 = 764,446.50 : x
2. Step 2: Convert to fraction form
   349,515/764,446.50 = 764,446.50/x
3. Step 3: Cross multiply
   349,515x = 764,446.50 × 764,446.50
4. Step 4: Simplify right side
   349,515x = 584,378,451,362.25
5. Step 5: Solve for x
   x = 584,378,451,362.25/349,515
6. Step 6: Final answer
   x = 1,671,969.59