Finding the Third Proportional to 81,817,905 and 181,797,141

Step by Step Solution

1. Step 1: Write the proportion equation
   81,817,905 : 181,797,141 = 181,797,141 : x
2. Step 2: Convert to fraction form
   81,817,905/181,797,141 = 181,797,141/x
3. Step 3: Cross multiply
   81,817,905x = 181,797,141 × 181,797,141
4. Step 4: Simplify right side
   81,817,905x = 33,050,200,475,773,880
5. Step 5: Solve for x
   x = 33,050,200,475,773,880/81,817,905
6. Step 6: Final answer
   x = 403,948,261.40