Finding the Third Proportional to 142,254 and 306,562.50

Step by Step Solution

1. Step 1: Write the proportion equation
   142,254 : 306,562.50 = 306,562.50 : x
2. Step 2: Convert to fraction form
   142,254/306,562.50 = 306,562.50/x
3. Step 3: Cross multiply
   142,254x = 306,562.50 × 306,562.50
4. Step 4: Simplify right side
   142,254x = 93,980,566,406.25
5. Step 5: Solve for x
   x = 93,980,566,406.25/142,254
6. Step 6: Final answer
   x = 660,653.24