Finding the Third Proportional to 65,421 and 103,759.50

Step by Step Solution

1. Step 1: Write the proportion equation
   65,421 : 103,759.50 = 103,759.50 : x
2. Step 2: Convert to fraction form
   65,421/103,759.50 = 103,759.50/x
3. Step 3: Cross multiply
   65,421x = 103,759.50 × 103,759.50
4. Step 4: Simplify right side
   65,421x = 10,766,033,840.25
5. Step 5: Solve for x
   x = 10,766,033,840.25/65,421
6. Step 6: Final answer
   x = 164,565.41