Finding the Third Proportional to 349,218 and 762,404

Step by Step Solution

1. Step 1: Write the proportion equation
   349,218 : 762,404 = 762,404 : x
2. Step 2: Convert to fraction form
   349,218/762,404 = 762,404/x
3. Step 3: Cross multiply
   349,218x = 762,404 × 762,404
4. Step 4: Simplify right side
   349,218x = 581,259,859,216
5. Step 5: Solve for x
   x = 581,259,859,216/349,218
6. Step 6: Final answer
   x = 1,664,461.34