Finding the Third Proportional to 57,082.50 and 90,907.50

Step by Step Solution

1. Step 1: Write the proportion equation
   57,082.50 : 90,907.50 = 90,907.50 : x
2. Step 2: Convert to fraction form
   57,082.50/90,907.50 = 90,907.50/x
3. Step 3: Cross multiply
   57,082.50x = 90,907.50 × 90,907.50
4. Step 4: Simplify right side
   57,082.50x = 8,264,173,556.25
5. Step 5: Solve for x
   x = 8,264,173,556.25/57,082.50
6. Step 6: Final answer
   x = 144,775.96