Finding the Third Proportional to 139,041,922 and 210,352,404

Step by Step Solution

1. Step 1: Write the proportion equation
   139,041,922 : 210,352,404 = 210,352,404 : x
2. Step 2: Convert to fraction form
   139,041,922/210,352,404 = 210,352,404/x
3. Step 3: Cross multiply
   139,041,922x = 210,352,404 × 210,352,404
4. Step 4: Simplify right side
   139,041,922x = 44,248,133,868,579,216
5. Step 5: Solve for x
   x = 44,248,133,868,579,216/139,041,922
6. Step 6: Final answer
   x = 318,235,919.30