Finding the Third Proportional to 345,447 and 749,900.25

Step by Step Solution

1. Step 1: Write the proportion equation
   345,447 : 749,900.25 = 749,900.25 : x
2. Step 2: Convert to fraction form
   345,447/749,900.25 = 749,900.25/x
3. Step 3: Cross multiply
   345,447x = 749,900.25 × 749,900.25
4. Step 4: Simplify right side
   345,447x = 562,350,384,950.06
5. Step 5: Solve for x
   x = 562,350,384,950.06/345,447
6. Step 6: Final answer
   x = 1,627,891.93