Finding the Third Proportional to 221,724 and 486,373.50

Step by Step Solution

1. Step 1: Write the proportion equation
   221,724 : 486,373.50 = 486,373.50 : x
2. Step 2: Convert to fraction form
   221,724/486,373.50 = 486,373.50/x
3. Step 3: Cross multiply
   221,724x = 486,373.50 × 486,373.50
4. Step 4: Simplify right side
   221,724x = 236,559,181,502.25
5. Step 5: Solve for x
   x = 236,559,181,502.25/221,724
6. Step 6: Final answer
   x = 1,066,908.33