Finding the Third Proportional to 1,214,472,711.09 and 1,865,903,091.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,214,472,711.09 : 1,865,903,091.89 = 1,865,903,091.89 : x
2. Step 2: Convert to fraction form
   1,214,472,711.09/1,865,903,091.89 = 1,865,903,091.89/x
3. Step 3: Cross multiply
   1,214,472,711.09x = 1,865,903,091.89 × 1,865,903,091.89
4. Step 4: Simplify right side
   1,214,472,711.09x = 3,481,594,348,326,900,736
5. Step 5: Solve for x
   x = 3,481,594,348,326,900,736/1,214,472,711.09
6. Step 6: Final answer
   x = 2,866,753,873.12