Finding the Third Proportional to 13,425,309,211 and 21,060,348,320

Step by Step Solution

1. Step 1: Write the proportion equation
   13,425,309,211 : 21,060,348,320 = 21,060,348,320 : x
2. Step 2: Convert to fraction form
   13,425,309,211/21,060,348,320 = 21,060,348,320/x
3. Step 3: Cross multiply
   13,425,309,211x = 21,060,348,320 × 21,060,348,320
4. Step 4: Simplify right side
   13,425,309,211x = 443,538,271,359,726,845,952
5. Step 5: Solve for x
   x = 443,538,271,359,726,845,952/13,425,309,211
6. Step 6: Final answer
   x = 33,037,471,568.72