Finding the Third Proportional to 54,945 and 74,638.50

Step by Step Solution

1. Step 1: Write the proportion equation
   54,945 : 74,638.50 = 74,638.50 : x
2. Step 2: Convert to fraction form
   54,945/74,638.50 = 74,638.50/x
3. Step 3: Cross multiply
   54,945x = 74,638.50 × 74,638.50
4. Step 4: Simplify right side
   54,945x = 5,570,905,682.25
5. Step 5: Solve for x
   x = 5,570,905,682.25/54,945
6. Step 6: Final answer
   x = 101,390.58