Finding the Third Proportional to 66,111,588 and 142,846,164

Step by Step Solution

1. Step 1: Write the proportion equation
   66,111,588 : 142,846,164 = 142,846,164 : x
2. Step 2: Convert to fraction form
   66,111,588/142,846,164 = 142,846,164/x
3. Step 3: Cross multiply
   66,111,588x = 142,846,164 × 142,846,164
4. Step 4: Simplify right side
   66,111,588x = 20,405,026,569,514,896
5. Step 5: Solve for x
   x = 20,405,026,569,514,896/66,111,588
6. Step 6: Final answer
   x = 308,645,234.32