Finding the Third Proportional to 78,100,611 and 162,665,553

Step by Step Solution

1. Step 1: Write the proportion equation
   78,100,611 : 162,665,553 = 162,665,553 : x
2. Step 2: Convert to fraction form
   78,100,611/162,665,553 = 162,665,553/x
3. Step 3: Cross multiply
   78,100,611x = 162,665,553 × 162,665,553
4. Step 4: Simplify right side
   78,100,611x = 26,460,082,132,795,808
5. Step 5: Solve for x
   x = 26,460,082,132,795,808/78,100,611
6. Step 6: Final answer
   x = 338,794,815.99