Finding the Third Proportional to 64,909 and 100,229.50

Step by Step Solution

1. Step 1: Write the proportion equation
   64,909 : 100,229.50 = 100,229.50 : x
2. Step 2: Convert to fraction form
   64,909/100,229.50 = 100,229.50/x
3. Step 3: Cross multiply
   64,909x = 100,229.50 × 100,229.50
4. Step 4: Simplify right side
   64,909x = 10,045,952,670.25
5. Step 5: Solve for x
   x = 10,045,952,670.25/64,909
6. Step 6: Final answer
   x = 154,769.80