Finding the Third Proportional to 31,919.63 and 74,557.13

Step by Step Solution

1. Step 1: Write the proportion equation
   31,919.63 : 74,557.13 = 74,557.13 : x
2. Step 2: Convert to fraction form
   31,919.63/74,557.13 = 74,557.13/x
3. Step 3: Cross multiply
   31,919.63x = 74,557.13 × 74,557.13
4. Step 4: Simplify right side
   31,919.63x = 5,558,764,888.27
5. Step 5: Solve for x
   x = 5,558,764,888.27/31,919.63
6. Step 6: Final answer
   x = 174,148.82