Finding the Third Proportional to 30,408.75 and 45,490.50

Step by Step Solution

1. Step 1: Write the proportion equation
   30,408.75 : 45,490.50 = 45,490.50 : x
2. Step 2: Convert to fraction form
   30,408.75/45,490.50 = 45,490.50/x
3. Step 3: Cross multiply
   30,408.75x = 45,490.50 × 45,490.50
4. Step 4: Simplify right side
   30,408.75x = 2,069,385,590.25
5. Step 5: Solve for x
   x = 2,069,385,590.25/30,408.75
6. Step 6: Final answer
   x = 68,052.31