Finding the Third Proportional to 64,783.13 and 99,942.19

Step by Step Solution

1. Step 1: Write the proportion equation
   64,783.13 : 99,942.19 = 99,942.19 : x
2. Step 2: Convert to fraction form
   64,783.13/99,942.19 = 99,942.19/x
3. Step 3: Cross multiply
   64,783.13x = 99,942.19 × 99,942.19
4. Step 4: Simplify right side
   64,783.13x = 9,988,440,842.29
5. Step 5: Solve for x
   x = 9,988,440,842.29/64,783.13
6. Step 6: Final answer
   x = 154,182.76