Finding the Third Proportional to 69,030.56 and 142,465.50

Step by Step Solution

1. Step 1: Write the proportion equation
   69,030.56 : 142,465.50 = 142,465.50 : x
2. Step 2: Convert to fraction form
   69,030.56/142,465.50 = 142,465.50/x
3. Step 3: Cross multiply
   69,030.56x = 142,465.50 × 142,465.50
4. Step 4: Simplify right side
   69,030.56x = 20,296,418,690.25
5. Step 5: Solve for x
   x = 20,296,418,690.25/69,030.56
6. Step 6: Final answer
   x = 294,020.76