Finding the Third Proportional to 191,587,984 and 419,446,789

Step by Step Solution

1. Step 1: Write the proportion equation
   191,587,984 : 419,446,789 = 419,446,789 : x
2. Step 2: Convert to fraction form
   191,587,984/419,446,789 = 419,446,789/x
3. Step 3: Cross multiply
   191,587,984x = 419,446,789 × 419,446,789
4. Step 4: Simplify right side
   191,587,984x = 175,935,608,802,410,528
5. Step 5: Solve for x
   x = 175,935,608,802,410,528/191,587,984
6. Step 6: Final answer
   x = 918,301,895.19