Finding the Third Proportional to 102,423,907.69 and 153,639,139.50

Step by Step Solution

1. Step 1: Write the proportion equation
   102,423,907.69 : 153,639,139.50 = 153,639,139.50 : x
2. Step 2: Convert to fraction form
   102,423,907.69/153,639,139.50 = 153,639,139.50/x
3. Step 3: Cross multiply
   102,423,907.69x = 153,639,139.50 × 153,639,139.50
4. Step 4: Simplify right side
   102,423,907.69x = 23,604,985,186,300,460
5. Step 5: Solve for x
   x = 23,604,985,186,300,460/102,423,907.69
6. Step 6: Final answer
   x = 230,463,626.31