Finding the Third Proportional to 14,621,689.69 and 31,681,555.31

Step by Step Solution

1. Step 1: Write the proportion equation
   14,621,689.69 : 31,681,555.31 = 31,681,555.31 : x
2. Step 2: Convert to fraction form
   14,621,689.69/31,681,555.31 = 31,681,555.31/x
3. Step 3: Cross multiply
   14,621,689.69x = 31,681,555.31 × 31,681,555.31
4. Step 4: Simplify right side
   14,621,689.69x = 1,003,720,947,018,997
5. Step 5: Solve for x
   x = 1,003,720,947,018,997/14,621,689.69
6. Step 6: Final answer
   x = 68,646,029.87