Finding the Third Proportional to 69,153 and 156,258.50

Step by Step Solution

1. Step 1: Write the proportion equation
   69,153 : 156,258.50 = 156,258.50 : x
2. Step 2: Convert to fraction form
   69,153/156,258.50 = 156,258.50/x
3. Step 3: Cross multiply
   69,153x = 156,258.50 × 156,258.50
4. Step 4: Simplify right side
   69,153x = 24,416,718,822.25
5. Step 5: Solve for x
   x = 24,416,718,822.25/69,153
6. Step 6: Final answer
   x = 353,082.57