Finding the Third Proportional to 615,978,304 and 1,369,679,072

Step by Step Solution

1. Step 1: Write the proportion equation
   615,978,304 : 1,369,679,072 = 1,369,679,072 : x
2. Step 2: Convert to fraction form
   615,978,304/1,369,679,072 = 1,369,679,072/x
3. Step 3: Cross multiply
   615,978,304x = 1,369,679,072 × 1,369,679,072
4. Step 4: Simplify right side
   615,978,304x = 1,876,020,760,274,781,184
5. Step 5: Solve for x
   x = 1,876,020,760,274,781,184/615,978,304
6. Step 6: Final answer
   x = 3,045,595,515.45