Finding the Third Proportional to 57,543,290 and 123,294,388

Step by Step Solution

1. Step 1: Write the proportion equation
   57,543,290 : 123,294,388 = 123,294,388 : x
2. Step 2: Convert to fraction form
   57,543,290/123,294,388 = 123,294,388/x
3. Step 3: Cross multiply
   57,543,290x = 123,294,388 × 123,294,388
4. Step 4: Simplify right side
   57,543,290x = 15,201,506,112,294,544
5. Step 5: Solve for x
   x = 15,201,506,112,294,544/57,543,290
6. Step 6: Final answer
   x = 264,175,129.93