Finding the Third Proportional to 168,636 and 372,978

Step by Step Solution

1. Step 1: Write the proportion equation
   168,636 : 372,978 = 372,978 : x
2. Step 2: Convert to fraction form
   168,636/372,978 = 372,978/x
3. Step 3: Cross multiply
   168,636x = 372,978 × 372,978
4. Step 4: Simplify right side
   168,636x = 139,112,588,484
5. Step 5: Solve for x
   x = 139,112,588,484/168,636
6. Step 6: Final answer
   x = 824,928.18