Finding the Third Proportional to 138,803,424 and 301,501,362

Step by Step Solution

1. Step 1: Write the proportion equation
   138,803,424 : 301,501,362 = 301,501,362 : x
2. Step 2: Convert to fraction form
   138,803,424/301,501,362 = 301,501,362/x
3. Step 3: Cross multiply
   138,803,424x = 301,501,362 × 301,501,362
4. Step 4: Simplify right side
   138,803,424x = 90,903,071,287,855,040
5. Step 5: Solve for x
   x = 90,903,071,287,855,040/138,803,424
6. Step 6: Final answer
   x = 654,905,107.30