Finding the Third Proportional to 99,698 and 153,242.50

Step by Step Solution

1. Step 1: Write the proportion equation
   99,698 : 153,242.50 = 153,242.50 : x
2. Step 2: Convert to fraction form
   99,698/153,242.50 = 153,242.50/x
3. Step 3: Cross multiply
   99,698x = 153,242.50 × 153,242.50
4. Step 4: Simplify right side
   99,698x = 23,483,263,806.25
5. Step 5: Solve for x
   x = 23,483,263,806.25/99,698
6. Step 6: Final answer
   x = 235,543.98