Finding the Third Proportional to 64,390.13 and 98,499.09

Step by Step Solution

1. Step 1: Write the proportion equation
   64,390.13 : 98,499.09 = 98,499.09 : x
2. Step 2: Convert to fraction form
   64,390.13/98,499.09 = 98,499.09/x
3. Step 3: Cross multiply
   64,390.13x = 98,499.09 × 98,499.09
4. Step 4: Simplify right side
   64,390.13x = 9,702,071,469.57
5. Step 5: Solve for x
   x = 9,702,071,469.57/64,390.13
6. Step 6: Final answer
   x = 150,676.39