Finding the Third Proportional to 157,777.88 and 215,558.72

Step by Step Solution

1. Step 1: Write the proportion equation
   157,777.88 : 215,558.72 = 215,558.72 : x
2. Step 2: Convert to fraction form
   157,777.88/215,558.72 = 215,558.72/x
3. Step 3: Cross multiply
   157,777.88x = 215,558.72 × 215,558.72
4. Step 4: Simplify right side
   157,777.88x = 46,465,561,229.14
5. Step 5: Solve for x
   x = 46,465,561,229.14/157,777.88
6. Step 6: Final answer
   x = 294,499.85