Finding the Third Proportional to 56,153 and 123,484

Step by Step Solution

1. Step 1: Write the proportion equation
   56,153 : 123,484 = 123,484 : x
2. Step 2: Convert to fraction form
   56,153/123,484 = 123,484/x
3. Step 3: Cross multiply
   56,153x = 123,484 × 123,484
4. Step 4: Simplify right side
   56,153x = 15,248,298,256
5. Step 5: Solve for x
   x = 15,248,298,256/56,153
6. Step 6: Final answer
   x = 271,549.13