Finding the Third Proportional to 699,786,054 and 1,503,423,769.78

Step by Step Solution

1. Step 1: Write the proportion equation
   699,786,054 : 1,503,423,769.78 = 1,503,423,769.78 : x
2. Step 2: Convert to fraction form
   699,786,054/1,503,423,769.78 = 1,503,423,769.78/x
3. Step 3: Cross multiply
   699,786,054x = 1,503,423,769.78 × 1,503,423,769.78
4. Step 4: Simplify right side
   699,786,054x = 2,260,283,031,543,114,496
5. Step 5: Solve for x
   x = 2,260,283,031,543,114,496/699,786,054
6. Step 6: Final answer
   x = 3,229,962,956.00