Finding the Third Proportional to 123,465,426 and 263,328,492

Step by Step Solution

1. Step 1: Write the proportion equation
   123,465,426 : 263,328,492 = 263,328,492 : x
2. Step 2: Convert to fraction form
   123,465,426/263,328,492 = 263,328,492/x
3. Step 3: Cross multiply
   123,465,426x = 263,328,492 × 263,328,492
4. Step 4: Simplify right side
   123,465,426x = 69,341,894,698,994,064
5. Step 5: Solve for x
   x = 69,341,894,698,994,064/123,465,426
6. Step 6: Final answer
   x = 561,630,060.70