Finding the Third Proportional to 37,590 and 78,825

Step by Step Solution

1. Step 1: Write the proportion equation
   37,590 : 78,825 = 78,825 : x
2. Step 2: Convert to fraction form
   37,590/78,825 = 78,825/x
3. Step 3: Cross multiply
   37,590x = 78,825 × 78,825
4. Step 4: Simplify right side
   37,590x = 6,213,380,625
5. Step 5: Solve for x
   x = 6,213,380,625/37,590
6. Step 6: Final answer
   x = 165,293.45