Finding the Third Proportional to 1,639,426,311 and 2,397,653,581.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,639,426,311 : 2,397,653,581.50 = 2,397,653,581.50 : x
2. Step 2: Convert to fraction form
   1,639,426,311/2,397,653,581.50 = 2,397,653,581.50/x
3. Step 3: Cross multiply
   1,639,426,311x = 2,397,653,581.50 × 2,397,653,581.50
4. Step 4: Simplify right side
   1,639,426,311x = 5,748,742,696,879,776,768
5. Step 5: Solve for x
   x = 5,748,742,696,879,776,768/1,639,426,311
6. Step 6: Final answer
   x = 3,506,557,542.91