Finding the Third Proportional to 173,783.25 and 405,978.75

Step by Step Solution

1. Step 1: Write the proportion equation
   173,783.25 : 405,978.75 = 405,978.75 : x
2. Step 2: Convert to fraction form
   173,783.25/405,978.75 = 405,978.75/x
3. Step 3: Cross multiply
   173,783.25x = 405,978.75 × 405,978.75
4. Step 4: Simplify right side
   173,783.25x = 164,818,745,451.56
5. Step 5: Solve for x
   x = 164,818,745,451.56/173,783.25
6. Step 6: Final answer
   x = 948,415.60