Finding the Third Proportional to 57,137.63 and 88,819.88

Step by Step Solution

1. Step 1: Write the proportion equation
   57,137.63 : 88,819.88 = 88,819.88 : x
2. Step 2: Convert to fraction form
   57,137.63/88,819.88 = 88,819.88/x
3. Step 3: Cross multiply
   57,137.63x = 88,819.88 × 88,819.88
4. Step 4: Simplify right side
   57,137.63x = 7,888,970,195.02
5. Step 5: Solve for x
   x = 7,888,970,195.02/57,137.63
6. Step 6: Final answer
   x = 138,069.62