Finding the Third Proportional to 11,907 and 16,012.50

Step by Step Solution

1. Step 1: Write the proportion equation
   11,907 : 16,012.50 = 16,012.50 : x
2. Step 2: Convert to fraction form
   11,907/16,012.50 = 16,012.50/x
3. Step 3: Cross multiply
   11,907x = 16,012.50 × 16,012.50
4. Step 4: Simplify right side
   11,907x = 256,400,156.25
5. Step 5: Solve for x
   x = 256,400,156.25/11,907
6. Step 6: Final answer
   x = 21,533.56