Finding the Third Proportional to 151,623,218 and 216,673,090

Step by Step Solution

1. Step 1: Write the proportion equation
   151,623,218 : 216,673,090 = 216,673,090 : x
2. Step 2: Convert to fraction form
   151,623,218/216,673,090 = 216,673,090/x
3. Step 3: Cross multiply
   151,623,218x = 216,673,090 × 216,673,090
4. Step 4: Simplify right side
   151,623,218x = 46,947,227,930,148,096
5. Step 5: Solve for x
   x = 46,947,227,930,148,096/151,623,218
6. Step 6: Final answer
   x = 309,630,863.59