Finding the Third Proportional to 42,511,288 and 67,676,640

Step by Step Solution

1. Step 1: Write the proportion equation
   42,511,288 : 67,676,640 = 67,676,640 : x
2. Step 2: Convert to fraction form
   42,511,288/67,676,640 = 67,676,640/x
3. Step 3: Cross multiply
   42,511,288x = 67,676,640 × 67,676,640
4. Step 4: Simplify right side
   42,511,288x = 4,580,127,601,689,600
5. Step 5: Solve for x
   x = 4,580,127,601,689,600/42,511,288
6. Step 6: Final answer
   x = 107,739,092.77