Finding the Third Proportional to 129,636 and 197,075.25

Step by Step Solution

1. Step 1: Write the proportion equation
   129,636 : 197,075.25 = 197,075.25 : x
2. Step 2: Convert to fraction form
   129,636/197,075.25 = 197,075.25/x
3. Step 3: Cross multiply
   129,636x = 197,075.25 × 197,075.25
4. Step 4: Simplify right side
   129,636x = 38,838,654,162.56
5. Step 5: Solve for x
   x = 38,838,654,162.56/129,636
6. Step 6: Final answer
   x = 299,597.75