Finding the Third Proportional to 122,610 and 164,767.50

Step by Step Solution

1. Step 1: Write the proportion equation
   122,610 : 164,767.50 = 164,767.50 : x
2. Step 2: Convert to fraction form
   122,610/164,767.50 = 164,767.50/x
3. Step 3: Cross multiply
   122,610x = 164,767.50 × 164,767.50
4. Step 4: Simplify right side
   122,610x = 27,148,329,056.25
5. Step 5: Solve for x
   x = 27,148,329,056.25/122,610
6. Step 6: Final answer
   x = 221,420.19