Finding the Third Proportional to 45,688 and 72,907

Step by Step Solution

1. Step 1: Write the proportion equation
   45,688 : 72,907 = 72,907 : x
2. Step 2: Convert to fraction form
   45,688/72,907 = 72,907/x
3. Step 3: Cross multiply
   45,688x = 72,907 × 72,907
4. Step 4: Simplify right side
   45,688x = 5,315,430,649
5. Step 5: Solve for x
   x = 5,315,430,649/45,688
6. Step 6: Final answer
   x = 116,341.94