Finding the Third Proportional to 142,048.69 and 306,630.88

Step by Step Solution

1. Step 1: Write the proportion equation
   142,048.69 : 306,630.88 = 306,630.88 : x
2. Step 2: Convert to fraction form
   142,048.69/306,630.88 = 306,630.88/x
3. Step 3: Cross multiply
   142,048.69x = 306,630.88 × 306,630.88
4. Step 4: Simplify right side
   142,048.69x = 94,022,495,898.82
5. Step 5: Solve for x
   x = 94,022,495,898.82/142,048.69
6. Step 6: Final answer
   x = 661,903.31