Finding the Third Proportional to 72,031,756 and 157,724,648

Step by Step Solution

1. Step 1: Write the proportion equation
   72,031,756 : 157,724,648 = 157,724,648 : x
2. Step 2: Convert to fraction form
   72,031,756/157,724,648 = 157,724,648/x
3. Step 3: Cross multiply
   72,031,756x = 157,724,648 × 157,724,648
4. Step 4: Simplify right side
   72,031,756x = 24,877,064,586,723,904
5. Step 5: Solve for x
   x = 24,877,064,586,723,904/72,031,756
6. Step 6: Final answer
   x = 345,362,461.89