Finding the Third Proportional to 294,447,499.50 and 619,355,535

Step by Step Solution

1. Step 1: Write the proportion equation
   294,447,499.50 : 619,355,535 = 619,355,535 : x
2. Step 2: Convert to fraction form
   294,447,499.50/619,355,535 = 619,355,535/x
3. Step 3: Cross multiply
   294,447,499.50x = 619,355,535 × 619,355,535
4. Step 4: Simplify right side
   294,447,499.50x = 383,601,278,735,136,256
5. Step 5: Solve for x
   x = 383,601,278,735,136,256/294,447,499.50
6. Step 6: Final answer
   x = 1,302,783,278.47