Finding the Third Proportional to 9,260,188 and 19,942,656

Step by Step Solution

1. Step 1: Write the proportion equation
   9,260,188 : 19,942,656 = 19,942,656 : x
2. Step 2: Convert to fraction form
   9,260,188/19,942,656 = 19,942,656/x
3. Step 3: Cross multiply
   9,260,188x = 19,942,656 × 19,942,656
4. Step 4: Simplify right side
   9,260,188x = 397,709,528,334,336
5. Step 5: Solve for x
   x = 397,709,528,334,336/9,260,188
6. Step 6: Final answer
   x = 42,948,321.17