Finding the Third Proportional to 123,656.63 and 264,809.25

Step by Step Solution

1. Step 1: Write the proportion equation
   123,656.63 : 264,809.25 = 264,809.25 : x
2. Step 2: Convert to fraction form
   123,656.63/264,809.25 = 264,809.25/x
3. Step 3: Cross multiply
   123,656.63x = 264,809.25 × 264,809.25
4. Step 4: Simplify right side
   123,656.63x = 70,123,938,885.56
5. Step 5: Solve for x
   x = 70,123,938,885.56/123,656.63
6. Step 6: Final answer
   x = 567,085.98