Finding the Third Proportional to 187,407 and 299,740.50

Step by Step Solution

1. Step 1: Write the proportion equation
   187,407 : 299,740.50 = 299,740.50 : x
2. Step 2: Convert to fraction form
   187,407/299,740.50 = 299,740.50/x
3. Step 3: Cross multiply
   187,407x = 299,740.50 × 299,740.50
4. Step 4: Simplify right side
   187,407x = 89,844,367,340.25
5. Step 5: Solve for x
   x = 89,844,367,340.25/187,407
6. Step 6: Final answer
   x = 479,407.75