Finding the Third Proportional to 56,185,392,642 and 81,178,189,827

Step by Step Solution

1. Step 1: Write the proportion equation
   56,185,392,642 : 81,178,189,827 = 81,178,189,827 : x
2. Step 2: Convert to fraction form
   56,185,392,642/81,178,189,827 = 81,178,189,827/x
3. Step 3: Cross multiply
   56,185,392,642x = 81,178,189,827 × 81,178,189,827
4. Step 4: Simplify right side
   56,185,392,642x = 6,589,898,503,588,445,945,856
5. Step 5: Solve for x
   x = 6,589,898,503,588,445,945,856/56,185,392,642
6. Step 6: Final answer
   x = 117,288,465,804.23