Finding the Third Proportional to 552,323 and 857,215.50

Step by Step Solution

1. Step 1: Write the proportion equation
   552,323 : 857,215.50 = 857,215.50 : x
2. Step 2: Convert to fraction form
   552,323/857,215.50 = 857,215.50/x
3. Step 3: Cross multiply
   552,323x = 857,215.50 × 857,215.50
4. Step 4: Simplify right side
   552,323x = 734,818,413,440.25
5. Step 5: Solve for x
   x = 734,818,413,440.25/552,323
6. Step 6: Final answer
   x = 1,330,414.29