Finding the Third Proportional to 72,689,538 and 155,596,707

Step by Step Solution

1. Step 1: Write the proportion equation
   72,689,538 : 155,596,707 = 155,596,707 : x
2. Step 2: Convert to fraction form
   72,689,538/155,596,707 = 155,596,707/x
3. Step 3: Cross multiply
   72,689,538x = 155,596,707 × 155,596,707
4. Step 4: Simplify right side
   72,689,538x = 24,210,335,229,243,848
5. Step 5: Solve for x
   x = 24,210,335,229,243,848/72,689,538
6. Step 6: Final answer
   x = 333,064,920.97