Finding the Third Proportional to 9,150,545 and 19,719,360

Step by Step Solution

1. Step 1: Write the proportion equation
   9,150,545 : 19,719,360 = 19,719,360 : x
2. Step 2: Convert to fraction form
   9,150,545/19,719,360 = 19,719,360/x
3. Step 3: Cross multiply
   9,150,545x = 19,719,360 × 19,719,360
4. Step 4: Simplify right side
   9,150,545x = 388,853,158,809,600
5. Step 5: Solve for x
   x = 388,853,158,809,600/9,150,545
6. Step 6: Final answer
   x = 42,495,081.86