Finding the Third Proportional to 35,699.06 and 78,404.81

Step by Step Solution

1. Step 1: Write the proportion equation
   35,699.06 : 78,404.81 = 78,404.81 : x
2. Step 2: Convert to fraction form
   35,699.06/78,404.81 = 78,404.81/x
3. Step 3: Cross multiply
   35,699.06x = 78,404.81 × 78,404.81
4. Step 4: Simplify right side
   35,699.06x = 6,147,314,623.16
5. Step 5: Solve for x
   x = 6,147,314,623.16/35,699.06
6. Step 6: Final answer
   x = 172,198.21