Finding the Third Proportional to 123,540,068 and 263,495,488

Step by Step Solution

1. Step 1: Write the proportion equation
   123,540,068 : 263,495,488 = 263,495,488 : x
2. Step 2: Convert to fraction form
   123,540,068/263,495,488 = 263,495,488/x
3. Step 3: Cross multiply
   123,540,068x = 263,495,488 × 263,495,488
4. Step 4: Simplify right side
   123,540,068x = 69,429,872,196,358,144
5. Step 5: Solve for x
   x = 69,429,872,196,358,144/123,540,068
6. Step 6: Final answer
   x = 562,002,865.31