Finding the Third Proportional to 867,910,090 and 1,309,936,212

Step by Step Solution

1. Step 1: Write the proportion equation
   867,910,090 : 1,309,936,212 = 1,309,936,212 : x
2. Step 2: Convert to fraction form
   867,910,090/1,309,936,212 = 1,309,936,212/x
3. Step 3: Cross multiply
   867,910,090x = 1,309,936,212 × 1,309,936,212
4. Step 4: Simplify right side
   867,910,090x = 1,715,932,879,508,909,056
5. Step 5: Solve for x
   x = 1,715,932,879,508,909,056/867,910,090
6. Step 6: Final answer
   x = 1,977,085,989.99