Finding the Third Proportional to 433,436 and 575,123

Step by Step Solution

1. Step 1: Write the proportion equation
   433,436 : 575,123 = 575,123 : x
2. Step 2: Convert to fraction form
   433,436/575,123 = 575,123/x
3. Step 3: Cross multiply
   433,436x = 575,123 × 575,123
4. Step 4: Simplify right side
   433,436x = 330,766,465,129
5. Step 5: Solve for x
   x = 330,766,465,129/433,436
6. Step 6: Final answer
   x = 763,126.42