Finding the Third Proportional to 19,817,276 and 27,906,328

Step by Step Solution

1. Step 1: Write the proportion equation
   19,817,276 : 27,906,328 = 27,906,328 : x
2. Step 2: Convert to fraction form
   19,817,276/27,906,328 = 27,906,328/x
3. Step 3: Cross multiply
   19,817,276x = 27,906,328 × 27,906,328
4. Step 4: Simplify right side
   19,817,276x = 778,763,142,443,584
5. Step 5: Solve for x
   x = 778,763,142,443,584/19,817,276
6. Step 6: Final answer
   x = 39,297,184.06