Finding the Third Proportional to 72,187,690 and 150,323,912

Step by Step Solution

1. Step 1: Write the proportion equation
   72,187,690 : 150,323,912 = 150,323,912 : x
2. Step 2: Convert to fraction form
   72,187,690/150,323,912 = 150,323,912/x
3. Step 3: Cross multiply
   72,187,690x = 150,323,912 × 150,323,912
4. Step 4: Simplify right side
   72,187,690x = 22,597,278,518,983,744
5. Step 5: Solve for x
   x = 22,597,278,518,983,744/72,187,690
6. Step 6: Final answer
   x = 313,035,068.98