Finding the Third Proportional to 127,603,009 and 279,908,210

Step by Step Solution

1. Step 1: Write the proportion equation
   127,603,009 : 279,908,210 = 279,908,210 : x
2. Step 2: Convert to fraction form
   127,603,009/279,908,210 = 279,908,210/x
3. Step 3: Cross multiply
   127,603,009x = 279,908,210 × 279,908,210
4. Step 4: Simplify right side
   127,603,009x = 78,348,606,025,404,096
5. Step 5: Solve for x
   x = 78,348,606,025,404,096/127,603,009
6. Step 6: Final answer
   x = 614,002,809.49