Finding the Third Proportional to 64,801 and 100,072.50

Step by Step Solution

1. Step 1: Write the proportion equation
   64,801 : 100,072.50 = 100,072.50 : x
2. Step 2: Convert to fraction form
   64,801/100,072.50 = 100,072.50/x
3. Step 3: Cross multiply
   64,801x = 100,072.50 × 100,072.50
4. Step 4: Simplify right side
   64,801x = 10,014,505,256.25
5. Step 5: Solve for x
   x = 10,014,505,256.25/64,801
6. Step 6: Final answer
   x = 154,542.45