Finding the Third Proportional to 349,480.50 and 764,385

Step by Step Solution

1. Step 1: Write the proportion equation
   349,480.50 : 764,385 = 764,385 : x
2. Step 2: Convert to fraction form
   349,480.50/764,385 = 764,385/x
3. Step 3: Cross multiply
   349,480.50x = 764,385 × 764,385
4. Step 4: Simplify right side
   349,480.50x = 584,284,428,225
5. Step 5: Solve for x
   x = 584,284,428,225/349,480.50
6. Step 6: Final answer
   x = 1,671,865.61