Finding the Third Proportional to 132,670,240 and 287,071,808

Step by Step Solution

1. Step 1: Write the proportion equation
   132,670,240 : 287,071,808 = 287,071,808 : x
2. Step 2: Convert to fraction form
   132,670,240/287,071,808 = 287,071,808/x
3. Step 3: Cross multiply
   132,670,240x = 287,071,808 × 287,071,808
4. Step 4: Simplify right side
   132,670,240x = 82,410,222,948,388,864
5. Step 5: Solve for x
   x = 82,410,222,948,388,864/132,670,240
6. Step 6: Final answer
   x = 621,165,854.14