Finding the Third Proportional to 57,607.50 and 77,419.50

Step by Step Solution

1. Step 1: Write the proportion equation
   57,607.50 : 77,419.50 = 77,419.50 : x
2. Step 2: Convert to fraction form
   57,607.50/77,419.50 = 77,419.50/x
3. Step 3: Cross multiply
   57,607.50x = 77,419.50 × 77,419.50
4. Step 4: Simplify right side
   57,607.50x = 5,993,778,980.25
5. Step 5: Solve for x
   x = 5,993,778,980.25/57,607.50
6. Step 6: Final answer
   x = 104,045.12