Finding the Third Proportional to 124,212 and 197,009.50

Step by Step Solution

1. Step 1: Write the proportion equation
   124,212 : 197,009.50 = 197,009.50 : x
2. Step 2: Convert to fraction form
   124,212/197,009.50 = 197,009.50/x
3. Step 3: Cross multiply
   124,212x = 197,009.50 × 197,009.50
4. Step 4: Simplify right side
   124,212x = 38,812,743,090.25
5. Step 5: Solve for x
   x = 38,812,743,090.25/124,212
6. Step 6: Final answer
   x = 312,471.77