Finding the Third Proportional to 26,929,118.50 and 42,648,149.50

Step by Step Solution

1. Step 1: Write the proportion equation
   26,929,118.50 : 42,648,149.50 = 42,648,149.50 : x
2. Step 2: Convert to fraction form
   26,929,118.50/42,648,149.50 = 42,648,149.50/x
3. Step 3: Cross multiply
   26,929,118.50x = 42,648,149.50 × 42,648,149.50
4. Step 4: Simplify right side
   26,929,118.50x = 1,818,864,655,774,350.25
5. Step 5: Solve for x
   x = 1,818,864,655,774,350.25/26,929,118.50
6. Step 6: Final answer
   x = 67,542,673.40