Finding the Third Proportional to 55,388.63 and 83,590.88

Step by Step Solution

1. Step 1: Write the proportion equation
   55,388.63 : 83,590.88 = 83,590.88 : x
2. Step 2: Convert to fraction form
   55,388.63/83,590.88 = 83,590.88/x
3. Step 3: Cross multiply
   55,388.63x = 83,590.88 × 83,590.88
4. Step 4: Simplify right side
   55,388.63x = 6,987,434,383.27
5. Step 5: Solve for x
   x = 6,987,434,383.27/55,388.63
6. Step 6: Final answer
   x = 126,152.88