Finding the Third Proportional to 423,965.39 and 575,713.83

Step by Step Solution

1. Step 1: Write the proportion equation
   423,965.39 : 575,713.83 = 575,713.83 : x
2. Step 2: Convert to fraction form
   423,965.39/575,713.83 = 575,713.83/x
3. Step 3: Cross multiply
   423,965.39x = 575,713.83 × 575,713.83
4. Step 4: Simplify right side
   423,965.39x = 331,446,411,894.34
5. Step 5: Solve for x
   x = 331,446,411,894.34/423,965.39
6. Step 6: Final answer
   x = 781,777.05