Finding the Third Proportional to 1,209,754,920.94 and 1,868,357,746.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,209,754,920.94 : 1,868,357,746.69 = 1,868,357,746.69 : x
2. Step 2: Convert to fraction form
   1,209,754,920.94/1,868,357,746.69 = 1,868,357,746.69/x
3. Step 3: Cross multiply
   1,209,754,920.94x = 1,868,357,746.69 × 1,868,357,746.69
4. Step 4: Simplify right side
   1,209,754,920.94x = 3,490,760,669,607,192,576
5. Step 5: Solve for x
   x = 3,490,760,669,607,192,576/1,209,754,920.94
6. Step 6: Final answer
   x = 2,885,510,618.05