Finding the Third Proportional to 308,296,845 and 719,384,164.50

Step by Step Solution

1. Step 1: Write the proportion equation
   308,296,845 : 719,384,164.50 = 719,384,164.50 : x
2. Step 2: Convert to fraction form
   308,296,845/719,384,164.50 = 719,384,164.50/x
3. Step 3: Cross multiply
   308,296,845x = 719,384,164.50 × 719,384,164.50
4. Step 4: Simplify right side
   308,296,845x = 517,513,576,133,363,072
5. Step 5: Solve for x
   x = 517,513,576,133,363,072/308,296,845
6. Step 6: Final answer
   x = 1,678,621,058.00