Finding the Third Proportional to 646,757,772 and 994,123,606

Step by Step Solution

1. Step 1: Write the proportion equation
   646,757,772 : 994,123,606 = 994,123,606 : x
2. Step 2: Convert to fraction form
   646,757,772/994,123,606 = 994,123,606/x
3. Step 3: Cross multiply
   646,757,772x = 994,123,606 × 994,123,606
4. Step 4: Simplify right side
   646,757,772x = 988,281,744,006,443,264
5. Step 5: Solve for x
   x = 988,281,744,006,443,264/646,757,772
6. Step 6: Final answer
   x = 1,528,055,458.77