Finding the Third Proportional to 99,216 and 153,672.50

Step by Step Solution

1. Step 1: Write the proportion equation
   99,216 : 153,672.50 = 153,672.50 : x
2. Step 2: Convert to fraction form
   99,216/153,672.50 = 153,672.50/x
3. Step 3: Cross multiply
   99,216x = 153,672.50 × 153,672.50
4. Step 4: Simplify right side
   99,216x = 23,615,237,256.25
5. Step 5: Solve for x
   x = 23,615,237,256.25/99,216
6. Step 6: Final answer
   x = 238,018.44