Finding the Third Proportional to 99,543 and 148,947

Step by Step Solution

1. Step 1: Write the proportion equation
   99,543 : 148,947 = 148,947 : x
2. Step 2: Convert to fraction form
   99,543/148,947 = 148,947/x
3. Step 3: Cross multiply
   99,543x = 148,947 × 148,947
4. Step 4: Simplify right side
   99,543x = 22,185,208,809
5. Step 5: Solve for x
   x = 22,185,208,809/99,543
6. Step 6: Final answer
   x = 222,870.61