Finding the Third Proportional to 69,311 and 104,459.50

Step by Step Solution

1. Step 1: Write the proportion equation
   69,311 : 104,459.50 = 104,459.50 : x
2. Step 2: Convert to fraction form
   69,311/104,459.50 = 104,459.50/x
3. Step 3: Cross multiply
   69,311x = 104,459.50 × 104,459.50
4. Step 4: Simplify right side
   69,311x = 10,911,787,140.25
5. Step 5: Solve for x
   x = 10,911,787,140.25/69,311
6. Step 6: Final answer
   x = 157,432.26