Finding the Third Proportional to 58,605 and 90,803.25

Step by Step Solution

1. Step 1: Write the proportion equation
   58,605 : 90,803.25 = 90,803.25 : x
2. Step 2: Convert to fraction form
   58,605/90,803.25 = 90,803.25/x
3. Step 3: Cross multiply
   58,605x = 90,803.25 × 90,803.25
4. Step 4: Simplify right side
   58,605x = 8,245,230,210.56
5. Step 5: Solve for x
   x = 8,245,230,210.56/58,605
6. Step 6: Final answer
   x = 140,691.58