Finding the Third Proportional to 359,788 and 519,786

Step by Step Solution

1. Step 1: Write the proportion equation
   359,788 : 519,786 = 519,786 : x
2. Step 2: Convert to fraction form
   359,788/519,786 = 519,786/x
3. Step 3: Cross multiply
   359,788x = 519,786 × 519,786
4. Step 4: Simplify right side
   359,788x = 270,177,485,796
5. Step 5: Solve for x
   x = 270,177,485,796/359,788
6. Step 6: Final answer
   x = 750,935.23