Finding the Third Proportional to 189,598,914 and 406,071,648

Step by Step Solution

1. Step 1: Write the proportion equation
   189,598,914 : 406,071,648 = 406,071,648 : x
2. Step 2: Convert to fraction form
   189,598,914/406,071,648 = 406,071,648/x
3. Step 3: Cross multiply
   189,598,914x = 406,071,648 × 406,071,648
4. Step 4: Simplify right side
   189,598,914x = 164,894,183,309,435,904
5. Step 5: Solve for x
   x = 164,894,183,309,435,904/189,598,914
6. Step 6: Final answer
   x = 869,700,041.16