Finding the Third Proportional to 98,716 and 144,372.50

Step by Step Solution

1. Step 1: Write the proportion equation
   98,716 : 144,372.50 = 144,372.50 : x
2. Step 2: Convert to fraction form
   98,716/144,372.50 = 144,372.50/x
3. Step 3: Cross multiply
   98,716x = 144,372.50 × 144,372.50
4. Step 4: Simplify right side
   98,716x = 20,843,418,756.25
5. Step 5: Solve for x
   x = 20,843,418,756.25/98,716
6. Step 6: Final answer
   x = 211,145.29