Finding the Third Proportional to 206,468.50 and 300,714.50

Step by Step Solution

1. Step 1: Write the proportion equation
   206,468.50 : 300,714.50 = 300,714.50 : x
2. Step 2: Convert to fraction form
   206,468.50/300,714.50 = 300,714.50/x
3. Step 3: Cross multiply
   206,468.50x = 300,714.50 × 300,714.50
4. Step 4: Simplify right side
   206,468.50x = 90,429,210,510.25
5. Step 5: Solve for x
   x = 90,429,210,510.25/206,468.50
6. Step 6: Final answer
   x = 437,980.66