Finding the Third Proportional to 64,513.50 and 89,145.50

Step by Step Solution

1. Step 1: Write the proportion equation
   64,513.50 : 89,145.50 = 89,145.50 : x
2. Step 2: Convert to fraction form
   64,513.50/89,145.50 = 89,145.50/x
3. Step 3: Cross multiply
   64,513.50x = 89,145.50 × 89,145.50
4. Step 4: Simplify right side
   64,513.50x = 7,946,920,170.25
5. Step 5: Solve for x
   x = 7,946,920,170.25/64,513.50
6. Step 6: Final answer
   x = 123,182.28