Finding the Third Proportional to 64,676,090,580 and 140,740,838,589

Step by Step Solution

1. Step 1: Write the proportion equation
   64,676,090,580 : 140,740,838,589 = 140,740,838,589 : x
2. Step 2: Convert to fraction form
   64,676,090,580/140,740,838,589 = 140,740,838,589/x
3. Step 3: Cross multiply
   64,676,090,580x = 140,740,838,589 × 140,740,838,589
4. Step 4: Simplify right side
   64,676,090,580x = 19,807,983,646,734,949,548,032
5. Step 5: Solve for x
   x = 19,807,983,646,734,949,548,032/64,676,090,580
6. Step 6: Final answer
   x = 306,264,393,365.49