Finding the Third Proportional to 57,663.56 and 83,664.56

Step by Step Solution

1. Step 1: Write the proportion equation
   57,663.56 : 83,664.56 = 83,664.56 : x
2. Step 2: Convert to fraction form
   57,663.56/83,664.56 = 83,664.56/x
3. Step 3: Cross multiply
   57,663.56x = 83,664.56 × 83,664.56
4. Step 4: Simplify right side
   57,663.56x = 6,999,759,018.32
5. Step 5: Solve for x
   x = 6,999,759,018.32/57,663.56
6. Step 6: Final answer
   x = 121,389.64