Finding the Third Proportional to 123,146.63 and 265,290

Step by Step Solution

1. Step 1: Write the proportion equation
   123,146.63 : 265,290 = 265,290 : x
2. Step 2: Convert to fraction form
   123,146.63/265,290 = 265,290/x
3. Step 3: Cross multiply
   123,146.63x = 265,290 × 265,290
4. Step 4: Simplify right side
   123,146.63x = 70,378,784,100
5. Step 5: Solve for x
   x = 70,378,784,100/123,146.63
6. Step 6: Final answer
   x = 571,503.96