Finding the Third Proportional to 543,320 and 860,132

Step by Step Solution

1. Step 1: Write the proportion equation
   543,320 : 860,132 = 860,132 : x
2. Step 2: Convert to fraction form
   543,320/860,132 = 860,132/x
3. Step 3: Cross multiply
   543,320x = 860,132 × 860,132
4. Step 4: Simplify right side
   543,320x = 739,827,057,424
5. Step 5: Solve for x
   x = 739,827,057,424/543,320
6. Step 6: Final answer
   x = 1,361,678.31