Finding the Third Proportional to 133,619,749.50 and 279,456,688.50

Step by Step Solution

1. Step 1: Write the proportion equation
   133,619,749.50 : 279,456,688.50 = 279,456,688.50 : x
2. Step 2: Convert to fraction form
   133,619,749.50/279,456,688.50 = 279,456,688.50/x
3. Step 3: Cross multiply
   133,619,749.50x = 279,456,688.50 × 279,456,688.50
4. Step 4: Simplify right side
   133,619,749.50x = 78,096,040,747,386,032
5. Step 5: Solve for x
   x = 78,096,040,747,386,032/133,619,749.50
6. Step 6: Final answer
   x = 584,464,804.34