Finding the Third Proportional to 81,881,404 and 180,139,063

Step by Step Solution

1. Step 1: Write the proportion equation
   81,881,404 : 180,139,063 = 180,139,063 : x
2. Step 2: Convert to fraction form
   81,881,404/180,139,063 = 180,139,063/x
3. Step 3: Cross multiply
   81,881,404x = 180,139,063 × 180,139,063
4. Step 4: Simplify right side
   81,881,404x = 32,450,082,018,517,968
5. Step 5: Solve for x
   x = 32,450,082,018,517,968/81,881,404
6. Step 6: Final answer
   x = 396,305,881.84