Finding the Third Proportional to 646,757,768 and 994,123,600

Step by Step Solution

1. Step 1: Write the proportion equation
   646,757,768 : 994,123,600 = 994,123,600 : x
2. Step 2: Convert to fraction form
   646,757,768/994,123,600 = 994,123,600/x
3. Step 3: Cross multiply
   646,757,768x = 994,123,600 × 994,123,600
4. Step 4: Simplify right side
   646,757,768x = 988,281,732,076,960,000
5. Step 5: Solve for x
   x = 988,281,732,076,960,000/646,757,768
6. Step 6: Final answer
   x = 1,528,055,449.78