Finding the Third Proportional to 3,790,464 and 8,210,784

Step by Step Solution

1. Step 1: Write the proportion equation
   3,790,464 : 8,210,784 = 8,210,784 : x
2. Step 2: Convert to fraction form
   3,790,464/8,210,784 = 8,210,784/x
3. Step 3: Cross multiply
   3,790,464x = 8,210,784 × 8,210,784
4. Step 4: Simplify right side
   3,790,464x = 67,416,973,894,656
5. Step 5: Solve for x
   x = 67,416,973,894,656/3,790,464
6. Step 6: Final answer
   x = 17,785,942.27