Finding the Third Proportional to 1,238,688 and 1,810,232

Step by Step Solution

1. Step 1: Write the proportion equation
   1,238,688 : 1,810,232 = 1,810,232 : x
2. Step 2: Convert to fraction form
   1,238,688/1,810,232 = 1,810,232/x
3. Step 3: Cross multiply
   1,238,688x = 1,810,232 × 1,810,232
4. Step 4: Simplify right side
   1,238,688x = 3,276,939,893,824
5. Step 5: Solve for x
   x = 3,276,939,893,824/1,238,688
6. Step 6: Final answer
   x = 2,645,492.56