Finding the Third Proportional to 72,058,790 and 111,534,897

Step by Step Solution

1. Step 1: Write the proportion equation
   72,058,790 : 111,534,897 = 111,534,897 : x
2. Step 2: Convert to fraction form
   72,058,790/111,534,897 = 111,534,897/x
3. Step 3: Cross multiply
   72,058,790x = 111,534,897 × 111,534,897
4. Step 4: Simplify right side
   72,058,790x = 12,440,033,248,800,608
5. Step 5: Solve for x
   x = 12,440,033,248,800,608/72,058,790
6. Step 6: Final answer
   x = 172,637,276.43