Finding the Third Proportional to 259,817,640 and 538,052,004

Step by Step Solution

1. Step 1: Write the proportion equation
   259,817,640 : 538,052,004 = 538,052,004 : x
2. Step 2: Convert to fraction form
   259,817,640/538,052,004 = 538,052,004/x
3. Step 3: Cross multiply
   259,817,640x = 538,052,004 × 538,052,004
4. Step 4: Simplify right side
   259,817,640x = 289,499,959,008,416,000
5. Step 5: Solve for x
   x = 289,499,959,008,416,000/259,817,640
6. Step 6: Final answer
   x = 1,114,242,893.62