Finding the Third Proportional to 40,780.13 and 89,837.25

Step by Step Solution

1. Step 1: Write the proportion equation
   40,780.13 : 89,837.25 = 89,837.25 : x
2. Step 2: Convert to fraction form
   40,780.13/89,837.25 = 89,837.25/x
3. Step 3: Cross multiply
   40,780.13x = 89,837.25 × 89,837.25
4. Step 4: Simplify right side
   40,780.13x = 8,070,731,487.56
5. Step 5: Solve for x
   x = 8,070,731,487.56/40,780.13
6. Step 6: Final answer
   x = 197,908.45