Finding the Third Proportional to 13,612,617 and 21,088,188

Step by Step Solution

1. Step 1: Write the proportion equation
   13,612,617 : 21,088,188 = 21,088,188 : x
2. Step 2: Convert to fraction form
   13,612,617/21,088,188 = 21,088,188/x
3. Step 3: Cross multiply
   13,612,617x = 21,088,188 × 21,088,188
4. Step 4: Simplify right side
   13,612,617x = 444,711,673,123,344
5. Step 5: Solve for x
   x = 444,711,673,123,344/13,612,617
6. Step 6: Final answer
   x = 32,669,079.95