Finding the Third Proportional to 140,254.88 and 300,602.81

Step by Step Solution

1. Step 1: Write the proportion equation
   140,254.88 : 300,602.81 = 300,602.81 : x
2. Step 2: Convert to fraction form
   140,254.88/300,602.81 = 300,602.81/x
3. Step 3: Cross multiply
   140,254.88x = 300,602.81 × 300,602.81
4. Step 4: Simplify right side
   140,254.88x = 90,362,050,882.91
5. Step 5: Solve for x
   x = 90,362,050,882.91/140,254.88
6. Step 6: Final answer
   x = 644,270.30