Finding the Third Proportional to 309,737,140 and 674,096,768

Step by Step Solution

1. Step 1: Write the proportion equation
   309,737,140 : 674,096,768 = 674,096,768 : x
2. Step 2: Convert to fraction form
   309,737,140/674,096,768 = 674,096,768/x
3. Step 3: Cross multiply
   309,737,140x = 674,096,768 × 674,096,768
4. Step 4: Simplify right side
   309,737,140x = 454,406,452,628,045,824
5. Step 5: Solve for x
   x = 454,406,452,628,045,824/309,737,140
6. Step 6: Final answer
   x = 1,467,071,248.31