Finding the Third Proportional to 349,512 and 748,819.50

Step by Step Solution

1. Step 1: Write the proportion equation
   349,512 : 748,819.50 = 748,819.50 : x
2. Step 2: Convert to fraction form
   349,512/748,819.50 = 748,819.50/x
3. Step 3: Cross multiply
   349,512x = 748,819.50 × 748,819.50
4. Step 4: Simplify right side
   349,512x = 560,730,643,580.25
5. Step 5: Solve for x
   x = 560,730,643,580.25/349,512
6. Step 6: Final answer
   x = 1,604,324.44