Finding the Third Proportional to 543,912 and 1,178,208

Step by Step Solution

1. Step 1: Write the proportion equation
   543,912 : 1,178,208 = 1,178,208 : x
2. Step 2: Convert to fraction form
   543,912/1,178,208 = 1,178,208/x
3. Step 3: Cross multiply
   543,912x = 1,178,208 × 1,178,208
4. Step 4: Simplify right side
   543,912x = 1,388,174,091,264
5. Step 5: Solve for x
   x = 1,388,174,091,264/543,912
6. Step 6: Final answer
   x = 2,552,203.47