Finding the Third Proportional to 42,209 and 65,336.50

Step by Step Solution

1. Step 1: Write the proportion equation
   42,209 : 65,336.50 = 65,336.50 : x
2. Step 2: Convert to fraction form
   42,209/65,336.50 = 65,336.50/x
3. Step 3: Cross multiply
   42,209x = 65,336.50 × 65,336.50
4. Step 4: Simplify right side
   42,209x = 4,268,858,232.25
5. Step 5: Solve for x
   x = 4,268,858,232.25/42,209
6. Step 6: Final answer
   x = 101,136.21