Finding the Third Proportional to 132,293.50 and 290,280

Step by Step Solution

1. Step 1: Write the proportion equation
   132,293.50 : 290,280 = 290,280 : x
2. Step 2: Convert to fraction form
   132,293.50/290,280 = 290,280/x
3. Step 3: Cross multiply
   132,293.50x = 290,280 × 290,280
4. Step 4: Simplify right side
   132,293.50x = 84,262,478,400
5. Step 5: Solve for x
   x = 84,262,478,400/132,293.50
6. Step 6: Final answer
   x = 636,935.89