Finding the Third Proportional to 71,435.25 and 84,395.25

Step by Step Solution

1. Step 1: Write the proportion equation
   71,435.25 : 84,395.25 = 84,395.25 : x
2. Step 2: Convert to fraction form
   71,435.25/84,395.25 = 84,395.25/x
3. Step 3: Cross multiply
   71,435.25x = 84,395.25 × 84,395.25
4. Step 4: Simplify right side
   71,435.25x = 7,122,558,222.56
5. Step 5: Solve for x
   x = 7,122,558,222.56/71,435.25
6. Step 6: Final answer
   x = 99,706.49