Finding the Third Proportional to 116,121 and 268,810.50

Step by Step Solution

1. Step 1: Write the proportion equation
   116,121 : 268,810.50 = 268,810.50 : x
2. Step 2: Convert to fraction form
   116,121/268,810.50 = 268,810.50/x
3. Step 3: Cross multiply
   116,121x = 268,810.50 × 268,810.50
4. Step 4: Simplify right side
   116,121x = 72,259,084,910.25
5. Step 5: Solve for x
   x = 72,259,084,910.25/116,121
6. Step 6: Final answer
   x = 622,274.05