Finding the Third Proportional to 878,913,292.50 and 1,878,701,665.50

Step by Step Solution

1. Step 1: Write the proportion equation
   878,913,292.50 : 1,878,701,665.50 = 1,878,701,665.50 : x
2. Step 2: Convert to fraction form
   878,913,292.50/1,878,701,665.50 = 1,878,701,665.50/x
3. Step 3: Cross multiply
   878,913,292.50x = 1,878,701,665.50 × 1,878,701,665.50
4. Step 4: Simplify right side
   878,913,292.50x = 3,529,519,947,952,474,112
5. Step 5: Solve for x
   x = 3,529,519,947,952,474,112/878,913,292.50
6. Step 6: Final answer
   x = 4,015,777,185.38