Finding the Third Proportional to 460,185,648 and 621,942,984

Step by Step Solution

1. Step 1: Write the proportion equation
   460,185,648 : 621,942,984 = 621,942,984 : x
2. Step 2: Convert to fraction form
   460,185,648/621,942,984 = 621,942,984/x
3. Step 3: Cross multiply
   460,185,648x = 621,942,984 × 621,942,984
4. Step 4: Simplify right side
   460,185,648x = 386,813,075,346,824,256
5. Step 5: Solve for x
   x = 386,813,075,346,824,256/460,185,648
6. Step 6: Final answer
   x = 840,558,754.99