Finding the Third Proportional to 64,279 and 99,515.50

Step by Step Solution

1. Step 1: Write the proportion equation
   64,279 : 99,515.50 = 99,515.50 : x
2. Step 2: Convert to fraction form
   64,279/99,515.50 = 99,515.50/x
3. Step 3: Cross multiply
   64,279x = 99,515.50 × 99,515.50
4. Step 4: Simplify right side
   64,279x = 9,903,334,740.25
5. Step 5: Solve for x
   x = 9,903,334,740.25/64,279
6. Step 6: Final answer
   x = 154,067.97