Finding the Third Proportional to 349,212 and 762,394.50

Step by Step Solution

1. Step 1: Write the proportion equation
   349,212 : 762,394.50 = 762,394.50 : x
2. Step 2: Convert to fraction form
   349,212/762,394.50 = 762,394.50/x
3. Step 3: Cross multiply
   349,212x = 762,394.50 × 762,394.50
4. Step 4: Simplify right side
   349,212x = 581,245,373,630.25
5. Step 5: Solve for x
   x = 581,245,373,630.25/349,212
6. Step 6: Final answer
   x = 1,664,448.45