Finding the Third Proportional to 372,904 and 570,191

Step by Step Solution

1. Step 1: Write the proportion equation
   372,904 : 570,191 = 570,191 : x
2. Step 2: Convert to fraction form
   372,904/570,191 = 570,191/x
3. Step 3: Cross multiply
   372,904x = 570,191 × 570,191
4. Step 4: Simplify right side
   372,904x = 325,117,776,481
5. Step 5: Solve for x
   x = 325,117,776,481/372,904
6. Step 6: Final answer
   x = 871,853.82