Finding the Third Proportional to 31,129,767 and 49,729,991.50

Step by Step Solution

1. Step 1: Write the proportion equation
   31,129,767 : 49,729,991.50 = 49,729,991.50 : x
2. Step 2: Convert to fraction form
   31,129,767/49,729,991.50 = 49,729,991.50/x
3. Step 3: Cross multiply
   31,129,767x = 49,729,991.50 × 49,729,991.50
4. Step 4: Simplify right side
   31,129,767x = 2,473,072,054,590,072
5. Step 5: Solve for x
   x = 2,473,072,054,590,072/31,129,767
6. Step 6: Final answer
   x = 79,443,962.90