Finding the Third Proportional to 433,415 and 575,248.50

Step by Step Solution

1. Step 1: Write the proportion equation
   433,415 : 575,248.50 = 575,248.50 : x
2. Step 2: Convert to fraction form
   433,415/575,248.50 = 575,248.50/x
3. Step 3: Cross multiply
   433,415x = 575,248.50 × 575,248.50
4. Step 4: Simplify right side
   433,415x = 330,910,836,752.25
5. Step 5: Solve for x
   x = 330,910,836,752.25/433,415
6. Step 6: Final answer
   x = 763,496.50