Finding the Third Proportional to 188,875.50 and 285,132

Step by Step Solution

1. Step 1: Write the proportion equation
   188,875.50 : 285,132 = 285,132 : x
2. Step 2: Convert to fraction form
   188,875.50/285,132 = 285,132/x
3. Step 3: Cross multiply
   188,875.50x = 285,132 × 285,132
4. Step 4: Simplify right side
   188,875.50x = 81,300,257,424
5. Step 5: Solve for x
   x = 81,300,257,424/188,875.50
6. Step 6: Final answer
   x = 430,443.64