Finding the Third Proportional to 39,290,578.50 and 82,653,628.50

Step by Step Solution

1. Step 1: Write the proportion equation
   39,290,578.50 : 82,653,628.50 = 82,653,628.50 : x
2. Step 2: Convert to fraction form
   39,290,578.50/82,653,628.50 = 82,653,628.50/x
3. Step 3: Cross multiply
   39,290,578.50x = 82,653,628.50 × 82,653,628.50
4. Step 4: Simplify right side
   39,290,578.50x = 6,831,622,304,216,012
5. Step 5: Solve for x
   x = 6,831,622,304,216,012/39,290,578.50
6. Step 6: Final answer
   x = 173,874,311.99