Finding the Third Proportional to 262,719 and 407,632.50

Step by Step Solution

1. Step 1: Write the proportion equation
   262,719 : 407,632.50 = 407,632.50 : x
2. Step 2: Convert to fraction form
   262,719/407,632.50 = 407,632.50/x
3. Step 3: Cross multiply
   262,719x = 407,632.50 × 407,632.50
4. Step 4: Simplify right side
   262,719x = 166,164,255,056.25
5. Step 5: Solve for x
   x = 166,164,255,056.25/262,719
6. Step 6: Final answer
   x = 632,479.02