Finding the Third Proportional to 72,300 and 105,132

Step by Step Solution

1. Step 1: Write the proportion equation
   72,300 : 105,132 = 105,132 : x
2. Step 2: Convert to fraction form
   72,300/105,132 = 105,132/x
3. Step 3: Cross multiply
   72,300x = 105,132 × 105,132
4. Step 4: Simplify right side
   72,300x = 11,052,737,424
5. Step 5: Solve for x
   x = 11,052,737,424/72,300
6. Step 6: Final answer
   x = 152,873.27