Finding the Third Proportional to 90,723 and 141,052.50

Step by Step Solution

1. Step 1: Write the proportion equation
   90,723 : 141,052.50 = 141,052.50 : x
2. Step 2: Convert to fraction form
   90,723/141,052.50 = 141,052.50/x
3. Step 3: Cross multiply
   90,723x = 141,052.50 × 141,052.50
4. Step 4: Simplify right side
   90,723x = 19,895,807,756.25
5. Step 5: Solve for x
   x = 19,895,807,756.25/90,723
6. Step 6: Final answer
   x = 219,302.80