Finding the Third Proportional to 543,231 and 775,696.50

Step by Step Solution

1. Step 1: Write the proportion equation
   543,231 : 775,696.50 = 775,696.50 : x
2. Step 2: Convert to fraction form
   543,231/775,696.50 = 775,696.50/x
3. Step 3: Cross multiply
   543,231x = 775,696.50 × 775,696.50
4. Step 4: Simplify right side
   543,231x = 601,705,060,112.25
5. Step 5: Solve for x
   x = 601,705,060,112.25/543,231
6. Step 6: Final answer
   x = 1,107,641.24