Finding the Third Proportional to 99,717,380 and 153,178,118

Step by Step Solution

1. Step 1: Write the proportion equation
   99,717,380 : 153,178,118 = 153,178,118 : x
2. Step 2: Convert to fraction form
   99,717,380/153,178,118 = 153,178,118/x
3. Step 3: Cross multiply
   99,717,380x = 153,178,118 × 153,178,118
4. Step 4: Simplify right side
   99,717,380x = 23,463,535,834,021,924
5. Step 5: Solve for x
   x = 23,463,535,834,021,924/99,717,380
6. Step 6: Final answer
   x = 235,300,364.23