Finding the Third Proportional to 45,181.13 and 98,978.63

Step by Step Solution

1. Step 1: Write the proportion equation
   45,181.13 : 98,978.63 = 98,978.63 : x
2. Step 2: Convert to fraction form
   45,181.13/98,978.63 = 98,978.63/x
3. Step 3: Cross multiply
   45,181.13x = 98,978.63 × 98,978.63
4. Step 4: Simplify right side
   45,181.13x = 9,796,768,206.89
5. Step 5: Solve for x
   x = 9,796,768,206.89/45,181.13
6. Step 6: Final answer
   x = 216,833.21