Finding the Third Proportional to 295,866 and 480,685.50

Step by Step Solution

1. Step 1: Write the proportion equation
   295,866 : 480,685.50 = 480,685.50 : x
2. Step 2: Convert to fraction form
   295,866/480,685.50 = 480,685.50/x
3. Step 3: Cross multiply
   295,866x = 480,685.50 × 480,685.50
4. Step 4: Simplify right side
   295,866x = 231,058,549,910.25
5. Step 5: Solve for x
   x = 231,058,549,910.25/295,866
6. Step 6: Final answer
   x = 780,956.75