Finding the Third Proportional to 72,571,691,979 and 100,905,136,816.50

Step by Step Solution

1. Step 1: Write the proportion equation
   72,571,691,979 : 100,905,136,816.50 = 100,905,136,816.50 : x
2. Step 2: Convert to fraction form
   72,571,691,979/100,905,136,816.50 = 100,905,136,816.50/x
3. Step 3: Cross multiply
   72,571,691,979x = 100,905,136,816.50 × 100,905,136,816.50
4. Step 4: Simplify right side
   72,571,691,979x = 10,181,846,635,956,584,579,072
5. Step 5: Solve for x
   x = 10,181,846,635,956,584,579,072/72,571,691,979
6. Step 6: Final answer
   x = 140,300,527,082.97