Finding the Third Proportional to 42,122.63 and 61,536.75

Step by Step Solution

1. Step 1: Write the proportion equation
   42,122.63 : 61,536.75 = 61,536.75 : x
2. Step 2: Convert to fraction form
   42,122.63/61,536.75 = 61,536.75/x
3. Step 3: Cross multiply
   42,122.63x = 61,536.75 × 61,536.75
4. Step 4: Simplify right side
   42,122.63x = 3,786,771,600.56
5. Step 5: Solve for x
   x = 3,786,771,600.56/42,122.63
6. Step 6: Final answer
   x = 89,898.76