Finding the Third Proportional to 81,881,404.50 and 180,139,065

Step by Step Solution

1. Step 1: Write the proportion equation
   81,881,404.50 : 180,139,065 = 180,139,065 : x
2. Step 2: Convert to fraction form
   81,881,404.50/180,139,065 = 180,139,065/x
3. Step 3: Cross multiply
   81,881,404.50x = 180,139,065 × 180,139,065
4. Step 4: Simplify right side
   81,881,404.50x = 32,450,082,739,074,224
5. Step 5: Solve for x
   x = 32,450,082,739,074,224/81,881,404.50
6. Step 6: Final answer
   x = 396,305,888.22