Finding the Third Proportional to 247,147.50 and 369,870

Step by Step Solution

1. Step 1: Write the proportion equation
   247,147.50 : 369,870 = 369,870 : x
2. Step 2: Convert to fraction form
   247,147.50/369,870 = 369,870/x
3. Step 3: Cross multiply
   247,147.50x = 369,870 × 369,870
4. Step 4: Simplify right side
   247,147.50x = 136,803,816,900
5. Step 5: Solve for x
   x = 136,803,816,900/247,147.50
6. Step 6: Final answer
   x = 553,531.06