Finding the Third Proportional to 345,316.50 and 749,682

Step by Step Solution

1. Step 1: Write the proportion equation
   345,316.50 : 749,682 = 749,682 : x
2. Step 2: Convert to fraction form
   345,316.50/749,682 = 749,682/x
3. Step 3: Cross multiply
   345,316.50x = 749,682 × 749,682
4. Step 4: Simplify right side
   345,316.50x = 562,023,101,124
5. Step 5: Solve for x
   x = 562,023,101,124/345,316.50
6. Step 6: Final answer
   x = 1,627,559.36