Finding the Third Proportional to 21,385,492 and 43,904,690

Step by Step Solution

1. Step 1: Write the proportion equation
   21,385,492 : 43,904,690 = 43,904,690 : x
2. Step 2: Convert to fraction form
   21,385,492/43,904,690 = 43,904,690/x
3. Step 3: Cross multiply
   21,385,492x = 43,904,690 × 43,904,690
4. Step 4: Simplify right side
   21,385,492x = 1,927,621,803,996,100
5. Step 5: Solve for x
   x = 1,927,621,803,996,100/21,385,492
6. Step 6: Final answer
   x = 90,136,892.99