Finding the Third Proportional to 11,970,390 and 18,573,108

Step by Step Solution

1. Step 1: Write the proportion equation
   11,970,390 : 18,573,108 = 18,573,108 : x
2. Step 2: Convert to fraction form
   11,970,390/18,573,108 = 18,573,108/x
3. Step 3: Cross multiply
   11,970,390x = 18,573,108 × 18,573,108
4. Step 4: Simplify right side
   11,970,390x = 344,960,340,779,664
5. Step 5: Solve for x
   x = 344,960,340,779,664/11,970,390
6. Step 6: Final answer
   x = 28,817,802.99