Finding the Third Proportional to 65,011.50 and 103,438.50

Step by Step Solution

1. Step 1: Write the proportion equation
   65,011.50 : 103,438.50 = 103,438.50 : x
2. Step 2: Convert to fraction form
   65,011.50/103,438.50 = 103,438.50/x
3. Step 3: Cross multiply
   65,011.50x = 103,438.50 × 103,438.50
4. Step 4: Simplify right side
   65,011.50x = 10,699,523,282.25
5. Step 5: Solve for x
   x = 10,699,523,282.25/65,011.50
6. Step 6: Final answer
   x = 164,578.93