Finding the Third Proportional to 245,268 and 432,276.75

Step by Step Solution

1. Step 1: Write the proportion equation
   245,268 : 432,276.75 = 432,276.75 : x
2. Step 2: Convert to fraction form
   245,268/432,276.75 = 432,276.75/x
3. Step 3: Cross multiply
   245,268x = 432,276.75 × 432,276.75
4. Step 4: Simplify right side
   245,268x = 186,863,188,590.56
5. Step 5: Solve for x
   x = 186,863,188,590.56/245,268
6. Step 6: Final answer
   x = 761,873.50