Finding the Third Proportional to 127,509,943,806 and 279,040,076,031

Step by Step Solution

1. Step 1: Write the proportion equation
   127,509,943,806 : 279,040,076,031 = 279,040,076,031 : x
2. Step 2: Convert to fraction form
   127,509,943,806/279,040,076,031 = 279,040,076,031/x
3. Step 3: Cross multiply
   127,509,943,806x = 279,040,076,031 × 279,040,076,031
4. Step 4: Simplify right side
   127,509,943,806x = 77,863,364,031,386,254,049,280
5. Step 5: Solve for x
   x = 77,863,364,031,386,254,049,280/127,509,943,806
6. Step 6: Final answer
   x = 610,645,426,601.80