Finding the Third Proportional to 543,142 and 798,076

Step by Step Solution

1. Step 1: Write the proportion equation
   543,142 : 798,076 = 798,076 : x
2. Step 2: Convert to fraction form
   543,142/798,076 = 798,076/x
3. Step 3: Cross multiply
   543,142x = 798,076 × 798,076
4. Step 4: Simplify right side
   543,142x = 636,925,301,776
5. Step 5: Solve for x
   x = 636,925,301,776/543,142
6. Step 6: Final answer
   x = 1,172,668.11