Finding the Third Proportional to 40,749 and 60,690

Step by Step Solution

1. Step 1: Write the proportion equation
   40,749 : 60,690 = 60,690 : x
2. Step 2: Convert to fraction form
   40,749/60,690 = 60,690/x
3. Step 3: Cross multiply
   40,749x = 60,690 × 60,690
4. Step 4: Simplify right side
   40,749x = 3,683,276,100
5. Step 5: Solve for x
   x = 3,683,276,100/40,749
6. Step 6: Final answer
   x = 90,389.36