Finding the Third Proportional to 15,783,090,636 and 34,344,640,965

Step by Step Solution

1. Step 1: Write the proportion equation
   15,783,090,636 : 34,344,640,965 = 34,344,640,965 : x
2. Step 2: Convert to fraction form
   15,783,090,636/34,344,640,965 = 34,344,640,965/x
3. Step 3: Cross multiply
   15,783,090,636x = 34,344,640,965 × 34,344,640,965
4. Step 4: Simplify right side
   15,783,090,636x = 1,179,554,363,014,756,171,776
5. Step 5: Solve for x
   x = 1,179,554,363,014,756,171,776/15,783,090,636
6. Step 6: Final answer
   x = 74,735,322,138.00