Finding the Third Proportional to 509,477,878 and 1,111,185,644

Step by Step Solution

1. Step 1: Write the proportion equation
   509,477,878 : 1,111,185,644 = 1,111,185,644 : x
2. Step 2: Convert to fraction form
   509,477,878/1,111,185,644 = 1,111,185,644/x
3. Step 3: Cross multiply
   509,477,878x = 1,111,185,644 × 1,111,185,644
4. Step 4: Simplify right side
   509,477,878x = 1,234,733,535,431,694,848
5. Step 5: Solve for x
   x = 1,234,733,535,431,694,848/509,477,878
6. Step 6: Final answer
   x = 2,423,527,279.10