Finding the Third Proportional to 331,072,364 and 780,429,722

Step by Step Solution

1. Step 1: Write the proportion equation
   331,072,364 : 780,429,722 = 780,429,722 : x
2. Step 2: Convert to fraction form
   331,072,364/780,429,722 = 780,429,722/x
3. Step 3: Cross multiply
   331,072,364x = 780,429,722 × 780,429,722
4. Step 4: Simplify right side
   331,072,364x = 609,070,550,980,997,248
5. Step 5: Solve for x
   x = 609,070,550,980,997,248/331,072,364
6. Step 6: Final answer
   x = 1,839,690,101.65