Finding the Third Proportional to 29,912,001,787 and 64,599,929,978

Step by Step Solution

1. Step 1: Write the proportion equation
   29,912,001,787 : 64,599,929,978 = 64,599,929,978 : x
2. Step 2: Convert to fraction form
   29,912,001,787/64,599,929,978 = 64,599,929,978/x
3. Step 3: Cross multiply
   29,912,001,787x = 64,599,929,978 × 64,599,929,978
4. Step 4: Simplify right side
   29,912,001,787x = 4,173,150,953,162,502,832,128
5. Step 5: Solve for x
   x = 4,173,150,953,162,502,832,128/29,912,001,787
6. Step 6: Final answer
   x = 139,514,265,306.58