Finding the Third Proportional to 288,414,359,552 and 423,981,902,947.50

Step by Step Solution

1. Step 1: Write the proportion equation
   288,414,359,552 : 423,981,902,947.50 = 423,981,902,947.50 : x
2. Step 2: Convert to fraction form
   288,414,359,552/423,981,902,947.50 = 423,981,902,947.50/x
3. Step 3: Cross multiply
   288,414,359,552x = 423,981,902,947.50 × 423,981,902,947.50
4. Step 4: Simplify right side
   288,414,359,552x = 179,760,654,026,983,302,234,112
5. Step 5: Solve for x
   x = 179,760,654,026,983,302,234,112/288,414,359,552
6. Step 6: Final answer
   x = 623,272,205,677.31