Finding the Third Proportional to 349,354.50 and 748,515

Step by Step Solution

1. Step 1: Write the proportion equation
   349,354.50 : 748,515 = 748,515 : x
2. Step 2: Convert to fraction form
   349,354.50/748,515 = 748,515/x
3. Step 3: Cross multiply
   349,354.50x = 748,515 × 748,515
4. Step 4: Simplify right side
   349,354.50x = 560,274,705,225
5. Step 5: Solve for x
   x = 560,274,705,225/349,354.50
6. Step 6: Final answer
   x = 1,603,742.63