Finding the Third Proportional to 57,672 and 73,690

Step by Step Solution

1. Step 1: Write the proportion equation
   57,672 : 73,690 = 73,690 : x
2. Step 2: Convert to fraction form
   57,672/73,690 = 73,690/x
3. Step 3: Cross multiply
   57,672x = 73,690 × 73,690
4. Step 4: Simplify right side
   57,672x = 5,430,216,100
5. Step 5: Solve for x
   x = 5,430,216,100/57,672
6. Step 6: Final answer
   x = 94,156.89