Finding the Third Proportional to 579,465 and 851,851.50

Step by Step Solution

1. Step 1: Write the proportion equation
   579,465 : 851,851.50 = 851,851.50 : x
2. Step 2: Convert to fraction form
   579,465/851,851.50 = 851,851.50/x
3. Step 3: Cross multiply
   579,465x = 851,851.50 × 851,851.50
4. Step 4: Simplify right side
   579,465x = 725,650,978,052.25
5. Step 5: Solve for x
   x = 725,650,978,052.25/579,465
6. Step 6: Final answer
   x = 1,252,277.49