Finding the Third Proportional to 3,287,123,174 and 7,039,689,111

Step by Step Solution

1. Step 1: Write the proportion equation
   3,287,123,174 : 7,039,689,111 = 7,039,689,111 : x
2. Step 2: Convert to fraction form
   3,287,123,174/7,039,689,111 = 7,039,689,111/x
3. Step 3: Cross multiply
   3,287,123,174x = 7,039,689,111 × 7,039,689,111
4. Step 4: Simplify right side
   3,287,123,174x = 49,557,222,779,531,968,512
5. Step 5: Solve for x
   x = 49,557,222,779,531,968,512/3,287,123,174
6. Step 6: Final answer
   x = 15,076,168,478.11