Finding the Third Proportional to 13,392 and 20,437.50

Step by Step Solution

1. Step 1: Write the proportion equation
   13,392 : 20,437.50 = 20,437.50 : x
2. Step 2: Convert to fraction form
   13,392/20,437.50 = 20,437.50/x
3. Step 3: Cross multiply
   13,392x = 20,437.50 × 20,437.50
4. Step 4: Simplify right side
   13,392x = 417,691,406.25
5. Step 5: Solve for x
   x = 417,691,406.25/13,392
6. Step 6: Final answer
   x = 31,189.62