Finding the Third Proportional to 49,921.31 and 108,590.63

Step by Step Solution

1. Step 1: Write the proportion equation
   49,921.31 : 108,590.63 = 108,590.63 : x
2. Step 2: Convert to fraction form
   49,921.31/108,590.63 = 108,590.63/x
3. Step 3: Cross multiply
   49,921.31x = 108,590.63 × 108,590.63
4. Step 4: Simplify right side
   49,921.31x = 11,791,923,837.89
5. Step 5: Solve for x
   x = 11,791,923,837.89/49,921.31
6. Step 6: Final answer
   x = 236,210.21