Finding the Third Proportional to 218,061 and 462,018.75

Step by Step Solution

1. Step 1: Write the proportion equation
   218,061 : 462,018.75 = 462,018.75 : x
2. Step 2: Convert to fraction form
   218,061/462,018.75 = 462,018.75/x
3. Step 3: Cross multiply
   218,061x = 462,018.75 × 462,018.75
4. Step 4: Simplify right side
   218,061x = 213,461,325,351.56
5. Step 5: Solve for x
   x = 213,461,325,351.56/218,061
6. Step 6: Final answer
   x = 978,906.48